Anchor: Not all of these factors may be necessary for all engagements.
Entailed: Not all engagents have need for these factors.
Contradiction: All these factors are crucial to all engagements
Contradiction: The girl is playing pick up sticks.
Contradiction: A person is outdoors.
Contradiction: St. Mark's is the only surviving gate from the old city walls.
Contradiction: The girl is indoors.