Anchor: One successful method used is a thermostatically controlled heat exchanger made from fiberglass.
Entailed: The fiberglass heat exchanger was used in a successful method.
Contradiction: The heat exchanger made of fiberglass led to the method failing.
Contradiction: a boy drinking tea with a man
Contradiction: I believed there should have been a rule towards American visitors because they haved obnoxiously.
Contradiction: The city square is desolate after a large snow storm.
Contradiction: There are not many compassionate teachers in Ireland.