Used to create variable arity relations, akin to TopicMap associations. Preliminary as hell.Association schemaAssociations are variable arity relations.The class of properties used to denote association membership. Designed to have a single member, do not subtype or extend.The fact of participation of a certain resource in an association.A role of a participant in a participation.Tables are just extremely regular associations.A nested DAML list describing a generalized E-R constraint. A list of two component lists: the first is a partial relation key with its cardinality constraint, the second is the range of the partial relation with its constraint. Each of the lists has three members: the first is a list of participation types, the second a literal giving the E-R lower cardinality bound and the third the upper bound.A DAML list diving the permissible column types. Implies every row must have every column present. Null values must be modelled by general associations.Maximum arity of participations of this type. A non-negative integer or a star. Has conjunctive semantics.Minimum arity of participations of this type. An non-negative integer. Has conjunctive semantics.Points to a participation in an association.A given association's type/collection. Declaring this makes an association's RDF type the association type, too.A list of roles permitted by this association. Has disjunctive semantics.The range of a hasParticipant with this role role. Has conjunctive semantics.The role a certain participant has in the context of a given Association.The target participant of this particular Participation.