relationship

Marks the relationship between joins in Placeholder

Attributes

many_to_many	Used for one-to-many or many-to-many relationships.
many_to_one	Used for many-to-one relationships.
one_to_many	Used for one-to-many or many-to-many relationships.
one_to_one	Used for one-to-one relationships.
propositionalization	Used for one-to-many or many-to-many relationships.