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Re ： 180(JPN-012) of WG2N1452

Re ： 180(JPN-012) of WG2N1452. Masao Okabe. Example1:. Let us think about a simple sentence carOwership(carOwer=Person:Tony, ownedCar=Car:Car#1234) MDR Part3 models this as an instance of Link as follows; Link:Link1( relation=Relation:carOwership, end=Concept:Tony,

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Re ： 180(JPN-012) of WG2N1452

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  1. Re：180(JPN-012) of WG2N1452 Masao Okabe Masao Okabe

  2. Example1: • Let us think about a simple sentence • carOwership(carOwer=Person:Tony, ownedCar=Car:Car#1234) • MDR Part3 models this as an instance of Link as follows; • Link:Link1( relation=Relation:carOwership, end=Concept:Tony, end=Concept:Car#1234) • Relation:carOwereship (role=Relation_Role:carOwer, role=Relation_Role:ownedCar) • Link_End:Link_End1 (end_role=Relation_Role:carOwer, end_role=Relation_Role:ownedCar) • Note: Another issue: Do we need some more? Something like; • Relation_Role:carOwer(range=Concept:Person) • Relation_Role:ownedCar(range=Concept:Car) Masao Okabe

  3. Example1: • Since Link is a subclass of Assertion, this Link1 can be viewed as a instance of Assertion. • Then, very naturally, Link1 as an instance of Assertion looks like; • Assetion:Link1( term=Concept:carOwership, term=Concept:Tony, term=Concept:Car#1234) • We should not neglect “term=Concept:carOwership” , whereas Link1 as a instance of Link looks; • Link:Link1( relation=Relation:carOwership, end=Concept:Tony, end=Concept:Car#1234) Masao Okabe

  4. Example2 : First one at Table E-28 • Similarly, it can be written as an instance of Link as; • Link:Link2( relation=Relation:instance-type, end=Concept::Car, end=Concept:owl:Class) • Relation:instance-type (role=Relation_Role:instance, role=Relation_Role:rdf:type) • Link_End:Link_End2 (end_role=Relation_Role:instance, end_role=Relation_Role:rdf:type) • Note: Another issue: Do we need some more? Something like; • Relation_Role:instance(range=Concept:Instance) • Relation_Role:rdf:type(range=Concept:Concept) Masao Okabe

  5. Example2 : First one at Table E-28 • Since Link is a subclass of Assertion, this Link1 can be viewed as a instance of Assertion. • Then, very naturally, Link1 as an instance of Assertion should be written as; • Assetion:Link2( term=Relation:instance-type, term=Concept::Car, term=end=Concept:owl:Class) • We should not neglect “term=Relation:instance-type” , whereas Link2 as a instance of Link is written as; • Link:Link2( relation=Relation:instance-type, end=Concept::Car, end=Concept:owl:Class) Masao Okabe

  6. MDR Part3 should be consistent on the treatment of Example 1 and 2. • Then, relation-link should be a subclass (sub-association) of assertion_term. Masao Okabe

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