Anchor: Wouldn't it be nice if people restricted their opinions to those areas in which they had professional expertise?
Entailed: It would be nice if people restricted their opinions to areas where they were experienced in.
Contradiction: It would be bad if people spoke their opinions on things that they knew about.
Contradiction: A man is listening to his mp3 player through his headphones.
Contradiction: Black bike parked
Contradiction: The woman eats the sun
Contradiction: There are people on stage.