Anchor: The light could become a flying object in a wind storm.
Entailed: It is possible the light will turn into
Contradiction: It is impossible for The light could become a flying object in a wind storm.
Contradiction: The light is bolted to the ground.
Contradiction: there is no storm and no light to see
Contradiction: Lights do not become airborne during wind storms.
Contradiction: The light is inside in the basement.