@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix wikibase: <http://wikiba.se/ontology#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix schema: <http://schema.org/> .
@prefix cc: <http://creativecommons.org/ns#> .
@prefix geo: <http://www.opengis.net/ont/geosparql#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix wd: <https://wikibase.echoimages.labs.wikimedia.pt/entity/> .
@prefix data: <https://wikibase.echoimages.labs.wikimedia.pt/wiki/Special:EntityData/> .
@prefix s: <https://wikibase.echoimages.labs.wikimedia.pt/entity/statement/> .
@prefix ref: <https://wikibase.echoimages.labs.wikimedia.pt/reference/> .
@prefix v: <https://wikibase.echoimages.labs.wikimedia.pt/value/> .
@prefix wdt: <https://wikibase.echoimages.labs.wikimedia.pt/prop/direct/> .
@prefix wdtn: <https://wikibase.echoimages.labs.wikimedia.pt/prop/direct-normalized/> .
@prefix p: <https://wikibase.echoimages.labs.wikimedia.pt/prop/> .
@prefix ps: <https://wikibase.echoimages.labs.wikimedia.pt/prop/statement/> .
@prefix psv: <https://wikibase.echoimages.labs.wikimedia.pt/prop/statement/value/> .
@prefix psn: <https://wikibase.echoimages.labs.wikimedia.pt/prop/statement/value-normalized/> .
@prefix pq: <https://wikibase.echoimages.labs.wikimedia.pt/prop/qualifier/> .
@prefix pqv: <https://wikibase.echoimages.labs.wikimedia.pt/prop/qualifier/value/> .
@prefix pqn: <https://wikibase.echoimages.labs.wikimedia.pt/prop/qualifier/value-normalized/> .
@prefix pr: <https://wikibase.echoimages.labs.wikimedia.pt/prop/reference/> .
@prefix prv: <https://wikibase.echoimages.labs.wikimedia.pt/prop/reference/value/> .
@prefix prn: <https://wikibase.echoimages.labs.wikimedia.pt/prop/reference/value-normalized/> .
@prefix wdno: <https://wikibase.echoimages.labs.wikimedia.pt/prop/novalue/> .

data:Q650 a schema:Dataset ;
	schema:about wd:Q650 ;
	cc:license <http://creativecommons.org/publicdomain/zero/1.0/> ;
	schema:softwareVersion "1.0.0" ;
	schema:version "7475"^^xsd:integer ;
	schema:dateModified "2026-06-11T17:26:09Z"^^xsd:dateTime ;
	wikibase:statements "6"^^xsd:integer ;
	wikibase:sitelinks "0"^^xsd:integer ;
	wikibase:identifiers "1"^^xsd:integer .

wd:Q650 a wikibase:Item ;
	wdt:P2 wd:Q7727 ;
	wdt:P79 wd:Q7731 ;
	wdt:P114 "Q140176787" ;
	wdt:P15 wd:Q7732 ;
	wdt:P63 wd:Q7726 ;
	wdt:P90 <https://wikibase.echoimages.labs.wikimedia.pt/wiki/File:PresseyTeachingMachine.jpg> ;
	p:P2 s:Q650-1364920D-30B7-450A-B409-D0856DE02651 .

s:Q650-1364920D-30B7-450A-B409-D0856DE02651 a wikibase:Statement,
		wikibase:BestRank ;
	wikibase:rank wikibase:NormalRank ;
	ps:P2 wd:Q7727 .

wd:Q650 p:P79 s:Q650-386AEA9F-D7AB-4B32-9685-94D5E952880B .

s:Q650-386AEA9F-D7AB-4B32-9685-94D5E952880B a wikibase:Statement,
		wikibase:BestRank ;
	wikibase:rank wikibase:NormalRank ;
	ps:P79 wd:Q7731 .

wd:Q650 p:P114 s:Q650-4cc5b602-43fd-8c65-16c6-19ed386ca020 .

s:Q650-4cc5b602-43fd-8c65-16c6-19ed386ca020 a wikibase:Statement,
		wikibase:BestRank ;
	wikibase:rank wikibase:NormalRank ;
	ps:P114 "Q140176787" .

wd:Q650 p:P15 s:Q650-227466e5-4e3c-521f-baec-95094d92a0a3 .

s:Q650-227466e5-4e3c-521f-baec-95094d92a0a3 a wikibase:Statement,
		wikibase:BestRank ;
	wikibase:rank wikibase:NormalRank ;
	ps:P15 wd:Q7732 .

wd:Q650 p:P63 s:Q650-4c80daa7-46ce-7c23-5977-bfca0548fe2f .

s:Q650-4c80daa7-46ce-7c23-5977-bfca0548fe2f a wikibase:Statement,
		wikibase:BestRank ;
	wikibase:rank wikibase:NormalRank ;
	ps:P63 wd:Q7726 .

wd:Q650 p:P90 s:Q650-ddfd742b-4531-3b20-e1af-4db2e7018e0e .

s:Q650-ddfd742b-4531-3b20-e1af-4db2e7018e0e a wikibase:Statement,
		wikibase:BestRank ;
	wikibase:rank wikibase:NormalRank ;
	ps:P90 <https://wikibase.echoimages.labs.wikimedia.pt/wiki/File:PresseyTeachingMachine.jpg> .

wd:Q650 rdfs:label "Pressey teaching machine"@en ;
	skos:prefLabel "Pressey teaching machine"@en ;
	schema:name "Pressey teaching machine"@en .

wd:Q7727 a wikibase:Item ;
	rdfs:label "teaching machine"@en ;
	skos:prefLabel "teaching machine"@en ;
	schema:name "teaching machine"@en ;
	schema:description "mechanical device with the purpose to administer a curriculum of programmed learning"@en .

wd:P2 a wikibase:Property ;
	rdfs:label "subclass of"@en ;
	skos:prefLabel "subclass of"@en ;
	schema:name "subclass of"@en ;
	schema:description "this item is a subclass (subset) of that item; all instances of this item are instances of that item; different from P31 (instance of), e.g.: K2 is an instance of mountain; volcano is a subclass of mountain (and an instance of volcanic landform)"@en ;
	wikibase:propertyType <http://wikiba.se/ontology#WikibaseItem> ;
	wikibase:directClaim wdt:P2 ;
	wikibase:claim p:P2 ;
	wikibase:statementProperty ps:P2 ;
	wikibase:statementValue psv:P2 ;
	wikibase:qualifier pq:P2 ;
	wikibase:qualifierValue pqv:P2 ;
	wikibase:reference pr:P2 ;
	wikibase:referenceValue prv:P2 ;
	wikibase:novalue wdno:P2 .

p:P2 a owl:ObjectProperty .

psv:P2 a owl:ObjectProperty .

pqv:P2 a owl:ObjectProperty .

prv:P2 a owl:ObjectProperty .

wdt:P2 a owl:ObjectProperty .

ps:P2 a owl:ObjectProperty .

pq:P2 a owl:ObjectProperty .

pr:P2 a owl:ObjectProperty .

wdno:P2 a owl:Class ;
	owl:complementOf _:1f05fece3ad482b53eed1f5510da49fa .

_:1f05fece3ad482b53eed1f5510da49fa a owl:Restriction ;
	owl:onProperty wdt:P2 ;
	owl:someValuesFrom owl:Thing .

wd:Q7731 a wikibase:Item ;
	rdfs:label "Sidney L. Pressey"@en ;
	skos:prefLabel "Sidney L. Pressey"@en ;
	schema:name "Sidney L. Pressey"@en .

wd:P79 a wikibase:Property ;
	rdfs:label "discoverer or inventor"@en ;
	skos:prefLabel "discoverer or inventor"@en ;
	schema:name "discoverer or inventor"@en ;
	wikibase:propertyType <http://wikiba.se/ontology#WikibaseItem> ;
	wikibase:directClaim wdt:P79 ;
	wikibase:claim p:P79 ;
	wikibase:statementProperty ps:P79 ;
	wikibase:statementValue psv:P79 ;
	wikibase:qualifier pq:P79 ;
	wikibase:qualifierValue pqv:P79 ;
	wikibase:reference pr:P79 ;
	wikibase:referenceValue prv:P79 ;
	wikibase:novalue wdno:P79 .

p:P79 a owl:ObjectProperty .

psv:P79 a owl:ObjectProperty .

pqv:P79 a owl:ObjectProperty .

prv:P79 a owl:ObjectProperty .

wdt:P79 a owl:ObjectProperty .

ps:P79 a owl:ObjectProperty .

pq:P79 a owl:ObjectProperty .

pr:P79 a owl:ObjectProperty .

wdno:P79 a owl:Class ;
	owl:complementOf _:03e10c01ca51816f5933c61b8f41e391 .

_:03e10c01ca51816f5933c61b8f41e391 a owl:Restriction ;
	owl:onProperty wdt:P79 ;
	owl:someValuesFrom owl:Thing .

wd:P114 a wikibase:Property ;
	rdfs:label "Wikidata entity"@en ;
	skos:prefLabel "Wikidata entity"@en ;
	schema:name "Wikidata entity"@en ;
	wikibase:propertyType <http://wikiba.se/ontology#ExternalId> ;
	wikibase:directClaim wdt:P114 ;
	wikibase:claim p:P114 ;
	wikibase:statementProperty ps:P114 ;
	wikibase:statementValue psv:P114 ;
	wikibase:qualifier pq:P114 ;
	wikibase:qualifierValue pqv:P114 ;
	wikibase:reference pr:P114 ;
	wikibase:referenceValue prv:P114 ;
	wikibase:novalue wdno:P114 ;
	wikibase:directClaimNormalized wdtn:P114 ;
	wikibase:statementValueNormalized psn:P114 ;
	wikibase:qualifierValueNormalized pqn:P114 ;
	wikibase:referenceValueNormalized prn:P114 .

p:P114 a owl:ObjectProperty .

psv:P114 a owl:ObjectProperty .

pqv:P114 a owl:ObjectProperty .

prv:P114 a owl:ObjectProperty .

wdt:P114 a owl:DatatypeProperty .

ps:P114 a owl:DatatypeProperty .

pq:P114 a owl:DatatypeProperty .

pr:P114 a owl:DatatypeProperty .

psn:P114 a owl:ObjectProperty .

pqn:P114 a owl:ObjectProperty .

prn:P114 a owl:ObjectProperty .

wdtn:P114 a owl:ObjectProperty .

wdno:P114 a owl:Class ;
	owl:complementOf _:439e6c91153eafb968cd9c1010f9447f .

_:439e6c91153eafb968cd9c1010f9447f a owl:Restriction ;
	owl:onProperty wdt:P114 ;
	owl:someValuesFrom owl:Thing .

wd:Q7732 a wikibase:Item ;
	rdfs:label "Columbus"@en ;
	skos:prefLabel "Columbus"@en ;
	schema:name "Columbus"@en .

wd:P15 a wikibase:Property ;
	rdfs:label "location of creation"@en ;
	skos:prefLabel "location of creation"@en ;
	schema:name "location of creation"@en ;
	schema:description "place where the item was conceived or made; where applicable, location of final assembly"@en ;
	wikibase:propertyType <http://wikiba.se/ontology#WikibaseItem> ;
	wikibase:directClaim wdt:P15 ;
	wikibase:claim p:P15 ;
	wikibase:statementProperty ps:P15 ;
	wikibase:statementValue psv:P15 ;
	wikibase:qualifier pq:P15 ;
	wikibase:qualifierValue pqv:P15 ;
	wikibase:reference pr:P15 ;
	wikibase:referenceValue prv:P15 ;
	wikibase:novalue wdno:P15 .

p:P15 a owl:ObjectProperty .

psv:P15 a owl:ObjectProperty .

pqv:P15 a owl:ObjectProperty .

prv:P15 a owl:ObjectProperty .

wdt:P15 a owl:ObjectProperty .

ps:P15 a owl:ObjectProperty .

pq:P15 a owl:ObjectProperty .

pr:P15 a owl:ObjectProperty .

wdno:P15 a owl:Class ;
	owl:complementOf _:c6d630bec22e907a0614fa544be8e394 .

_:c6d630bec22e907a0614fa544be8e394 a owl:Restriction ;
	owl:onProperty wdt:P15 ;
	owl:someValuesFrom owl:Thing .

wd:Q7726 a wikibase:Item ;
	rdfs:label "Teaching Machines"@en ;
	skos:prefLabel "Teaching Machines"@en ;
	schema:name "Teaching Machines"@en ;
	schema:description "vocabulary of project teaching machines"@en .

wd:P63 a wikibase:Property ;
	rdfs:label "vocabulary"@en ;
	skos:prefLabel "vocabulary"@en ;
	schema:name "vocabulary"@en ;
	wikibase:propertyType <http://wikiba.se/ontology#WikibaseItem> ;
	wikibase:directClaim wdt:P63 ;
	wikibase:claim p:P63 ;
	wikibase:statementProperty ps:P63 ;
	wikibase:statementValue psv:P63 ;
	wikibase:qualifier pq:P63 ;
	wikibase:qualifierValue pqv:P63 ;
	wikibase:reference pr:P63 ;
	wikibase:referenceValue prv:P63 ;
	wikibase:novalue wdno:P63 .

p:P63 a owl:ObjectProperty .

psv:P63 a owl:ObjectProperty .

pqv:P63 a owl:ObjectProperty .

prv:P63 a owl:ObjectProperty .

wdt:P63 a owl:ObjectProperty .

ps:P63 a owl:ObjectProperty .

pq:P63 a owl:ObjectProperty .

pr:P63 a owl:ObjectProperty .

wdno:P63 a owl:Class ;
	owl:complementOf _:c49d772f682724547bd0555f54a3f33b .

_:c49d772f682724547bd0555f54a3f33b a owl:Restriction ;
	owl:onProperty wdt:P63 ;
	owl:someValuesFrom owl:Thing .

wd:P90 a wikibase:Property ;
	rdfs:label "copyrighted image"@en ;
	skos:prefLabel "copyrighted image"@en ;
	schema:name "copyrighted image"@en ;
	wikibase:propertyType <http://wikiba.se/ontology#LocalMedia> ;
	wikibase:directClaim wdt:P90 ;
	wikibase:claim p:P90 ;
	wikibase:statementProperty ps:P90 ;
	wikibase:statementValue psv:P90 ;
	wikibase:qualifier pq:P90 ;
	wikibase:qualifierValue pqv:P90 ;
	wikibase:reference pr:P90 ;
	wikibase:referenceValue prv:P90 ;
	wikibase:novalue wdno:P90 .

p:P90 a owl:ObjectProperty .

psv:P90 a owl:ObjectProperty .

pqv:P90 a owl:ObjectProperty .

prv:P90 a owl:ObjectProperty .

wdt:P90 a owl:ObjectProperty .

ps:P90 a owl:ObjectProperty .

pq:P90 a owl:ObjectProperty .

pr:P90 a owl:ObjectProperty .

wdno:P90 a owl:Class ;
	owl:complementOf _:42ad3eaed1a31a001aba959288f4d189 .

_:42ad3eaed1a31a001aba959288f4d189 a owl:Restriction ;
	owl:onProperty wdt:P90 ;
	owl:someValuesFrom owl:Thing .

wd:Q7730 owl:sameAs wd:Q650 .