Anchor: A person is sitting on a ledge by a river in a city.
Entailed: A person by the river.
Contradiction: A person walking down the sidewalk.
Contradiction: It's like a really really dull sword or knife. 
Contradiction: Gothic rosewindows and Arab windows are visible in the church.
Contradiction: No dates are produced by the female palms.
Contradiction: It was still worthy of an attempt.