Long form: hasMembers Short form: hasMembers
The hasMembers relationship is a special form which enables the assignment of multiple member classes in a single statement where the object of the statement is a set of abundance terms. A statement using hasMembers is exactly equivalent to multiple hasMember statements. A term may not appear in both the subject and object of the same hasMembers statement.
For the abundance terms A, B, C and D, A hasMembers list(B, C, D) indicates that A is defined by its member abundance classes B, C and D.