@prefix obo: <http://purl.obolibrary.org/obo/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .

obo:BFO_0000142 a owl:Class ;
    rdfs:label "one-dimensional continuant fiat boundary"@en ;
    obo:BFO_0000179 "1d-cf-boundary" ;
    obo:BFO_0000180 "OneDimensionalContinuantFiatBoundary" ;
    obo:IAO_0000112 "The Equator"@en,
        "all geopolitical boundaries"@en,
        "all lines of latitude and longitude"@en,
        "the line separating the outer surface of the mucosa of the lower lip from the outer surface of the skin of the chin."@en,
        "the median sulcus of your tongue"@en ;
    obo:IAO_0000600 "a one-dimensional continuant fiat boundary is a continuous fiat line whose location is defined in relation to some material entity. (axiom label in BFO2 Reference: [032-001])"@en ;
    obo:IAO_0000602 "(iff (OneDimensionalContinuantFiatBoundary a) (and (ContinuantFiatBoundary a) (exists (b) (and (OneDimensionalSpatialRegion b) (forall (t) (locatedInAt a b t)))))) // axiom label in BFO2 CLIF: [032-001] " ;
    rdfs:isDefinedBy obo:bfo.owl ;
    rdfs:subClassOf obo:BFO_0000140 ;
    owl:disjointWith obo:BFO_0000146,
        obo:BFO_0000147 .