Expression: classes (22)
owl:Thing
drs:Formula
expr:Condition
expr:DRS-Condition
expr:DRS-Expression
expr:Expression
expr:KIF-Condition
expr:KIF-Expression
expr:LogicLanguage
expr:QuotedExpression
expr:RDQL-Condition
expr:RDQL-Expression
expr:SPARQL-Condition
expr:SPARQL-Expression
expr:SWRL-Condition
expr:SWRL-Expression
expr:SWRL-FOL-Condition
expr:SWRL-FOL-Expression
expr:UnquotedExpression
expr:VariableBinding
owl:Nothing
swrl:AtomList