Anchor: A girl with a cellphone is standing underneath a street sign.
Entailed: the girl with the phone is outside
Contradiction: the girl is indoors on the couch
Contradiction: A man is wearing a black shirt
Contradiction: Activities can often be caused by cost drivers.
Contradiction: They all have very colorful and bright memories. 
Contradiction: I used to live in 21-B, if I remember correctly.