For terms A and B,
A association B or
A -- B indicates that A and B are
associated in an unspecified manner. This relationship is used when not enough
information about the association is available to describe it using more
specific relationships, like
positiveCorrelation. The order of
the subject and object does not affect the interpretation of the statement,
B -- A is equivalent to
A -- B.
A common example of association relationships is from literature co-occurrence, such as genes being annotated to diseases.