UFO.UFO-A
Classes 
Abstract Individual
Amount of Matter
AntiRigid Mixin
AntiRigidSortal
Category
Characterization
Collective
Collective Member
Collective Universal
Complex
Complex Member
Complex Quality
Complex Quality Universal
ComponentOf
Concrete Individual
Derivation
Domain Formal Relation
Endurant
Endurant Universal
Formal Relation
Individual
Internal Relation
Intrinsic Moment
Intrinsic Moment Universal
Kind
Material Relation
Mediation
Member
MemberOf
Meronymic
Mixin
Mixin Universal
Mode
Mode Universal
Moment
Moment Universal
Monadic Universal
NonRigid Mixin
NonSortal Universal
Object
Phase
Phased QuaIndividual
Proposition
QuaIndividual
Quale
Quality
Quality Dimension
Quality Domain
Quality Structure
Quality Universal
Quantity
Quantity Universal
Relational QuaIndividual
Relation Universal
Relator
Relator Universal
Rigid Mixin
Rigid Sortal
Role
Role Mixin
SemiRigid Mixin
Set
Simple Quality
Simple Quality Universal
Situation
Sortal Universal
SubCollectionOf
Subkind
SubQuantityOf
Substance Sortal
Substantial
Substantial Moment
Substantial Universal
Thing
Universal