Anchor: Men and women of various ages sit playing instruments in an orchestra while a similar group stand in the background as a choir.
Entailed: There is a group of people in an orchestra.
Contradiction: There is only a single person on stage.
Contradiction: Two musical groups refuse to play
Contradiction: There are no instruments in the orchestra.
Contradiction: The men are all older.
Contradiction: A group of people play rugby while a choir sings for them.