X -> r (A, B, ...), which means:
Within a context of type X, the parts A, B, ... are related by the relationship r.
For example: Within a gothic cathedral-> the nave is flanked on both sides by parallel lines.
or: Where a freeway meets an artery -> the access ramps of the interchange take the rough form of a clover-leaf.
Each pattern of relationships is among still other patterns of relationships. Further, each pattern in the space has a pattern of events associated with it.