Roger L Costello, David B. Jacobs. c 2003 The MITRE Corporation Relationship between focal-length and lens size This owl statement tells the Web bot that focal-length is equivalent to lens size <owl Datatype Property rdf ID=focal-length> <owl: equivalentProperty rdf resource=#size"/> rdfs domain rdfresource=#Lens"> <rdfs range rdf resource="&xsd; #string/> </owl DatatypeProperty> focal-length is synonymous with(lens )size focal-length is to be used within a Lens focal-length has a value that is a string10 Roger L. Costello, David B. Jacobs. © 2003 The MITRE Corporation. Relationship between focal-length and lens size? This OWL statement tells the Web Bot that focal-length is equivalent to lens size: <owl:DatatypeProperty rdf:ID="focal-length"> <owl:equivalentProperty rdf:resource="#size"/> <rdfs:domain rdf:resource="#Lens"/> <rdfs:range rdf:resource="&xsd;#string"/> </owl:DatatypeProperty> "focal-length is synonymous with (lens) size. focal-length is to be used within a Lens. focal-length has a value that is a string