Assertion: obj file | /r/CapableOf | reference vertices
Facets:
value: by their relative position
type: OTHER
value: by their absolute position
type: MANNER
Source sentences:
text: OBJ files, due to their list structure, are able to reference vertices, normals, etc. either by their absolute position (1 represents the first defined vertex, N representing the Nth defined vertex), or by their relative position (-1 represents the latest defined vertex).