Anchor: And if there was a bit of buggery and whatnot going on up in the balcony, what of it?
Entailed: There was something going on in the balcony. 
Contradiction: Nothing was happening on the balcony. 
Contradiction: A person is sleeping.
Contradiction: It's in demand, so be sure to make reservations.
Contradiction: A man is playing baseball.
Contradiction: A group of female doctors and nurses stand.