Anchor: A city street is illuminated by lamps at night.
Entailed: The street is illuminated at night by lamps.
Contradiction: The sun is shining on the beach.
Contradiction: A city street is darkened at night after recent vandalism of the lamps.
Contradiction: There is nothing to see.
Contradiction: A city street is dark at night due to no lamps.
Contradiction: A city street is dim with no working streetlamps