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KB:
SUMO
Language:
ChineseLanguage
ChineseTraditionalLanguage
EnglishLanguage
FrenchLanguage
GermanLanguage
JapaneseLanguage
SpanishLanguage
SwedishLanguage
Formal Language:
OWL
SUO-KIF
TPTP
traditionalLogic
KB Term:
Knowledge base statistics:
as of 2025/12/23
Total Terms
Total Axioms
Total Rules
15459
213430
7410
Relations:
1751
non-linguistic axioms:
160507
Ground tuples:
205935
of which are binary:
147706
of which arity more than binary:
58314
Rules:
7410
of which are
horn:
2519
first-order:
5463
temporal:
843
modal:
274
epistemic:
87
other higher-order:
848
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Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is
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produced by
Articulate Software
and its partners