Anchor: An artist finishes a sketch while he sits on a bench on the sidewalk.
Entailed: An artist finishes a sketch.
Contradiction: A traveler waits for a bus on a bench while doing nothing.
Contradiction: A man skiing down a hill.
Contradiction: The child is about to toss a basketball.
Contradiction: A man playing the guitar in the rain.
Contradiction: It will require the police, I cannot accomplish it alone.