<http://purl.obolibrary.org/obo/RO_0002000> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#ObjectProperty> .
<http://purl.obolibrary.org/obo/RO_0002000> <http://www.w3.org/2002/07/owl#inverseOf> <http://purl.obolibrary.org/obo/RO_0002002> .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000115> "a relation between a 2D immaterial entity (the boundary) and a material entity, in which the boundary delimits the material entity"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://www.w3.org/2000/01/rdf-schema#label> "2D boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000116> "A 2D boundary may have holes and gaps, but it must be a single connected entity, not an aggregate of several disconnected parts."@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000116> "Although the boundary is two-dimensional, it exists in three-dimensional space and thus has a 3D shape."@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "is 2D boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "2D_boundary_of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "is boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000112> "the surface of my skin is a 2D boundary of my body"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/RO_0001900> <http://purl.obolibrary.org/obo/RO_0001901> .
<http://purl.obolibrary.org/obo/RO_0002000> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#ObjectProperty> .
<http://purl.obolibrary.org/obo/RO_0002000> <http://www.w3.org/2002/07/owl#inverseOf> <http://purl.obolibrary.org/obo/RO_0002002> .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000115> "a relation between a 2D immaterial entity (the boundary) and a material entity, in which the boundary delimits the material entity"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://www.w3.org/2000/01/rdf-schema#label> "2D boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000116> "A 2D boundary may have holes and gaps, but it must be a single connected entity, not an aggregate of several disconnected parts."@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000116> "Although the boundary is two-dimensional, it exists in three-dimensional space and thus has a 3D shape."@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "is 2D boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "2D_boundary_of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "is boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000118> "boundary of"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/IAO_0000112> "the surface of my skin is a 2D boundary of my body"@en .
<http://purl.obolibrary.org/obo/RO_0002000> <http://purl.obolibrary.org/obo/RO_0001900> <http://purl.obolibrary.org/obo/RO_0001901> .