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

Formal Language: 

Term 1: Term 2:

(subclass NightTime TimeInterval) Merge.kif 8354-8354 Night time is a subclass of time interval
(subclass Evening NightTime) Merge.kif 8376-8376 Evening is a subclass of night time

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