Term Intersection : Welcome guest : log in
Home |  Graph |  ]  KB:  Language:   

Formal Language: 



Term 1: Term 2:

(subclass Door TransitwayObstacle) Mid-level-ontology.kif 15255-15255
(subclass Door Device) Mid-level-ontology.kif 15256-15256


Sigma web home      Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners