premise: Many people gathered in a room with several people on stage with instruments and the words 'The Early November' on the wall. hypothesis: People leave as the concert is decides to charge per note.
contradiction: People are either leaving a room or gathered together, but not both.  Leaving implies that they are moving, but gathered implies that they are there for a reason.|contradiction: people are either gathered or leave.|contradiction: Many people are either gathered or people will leave are different actions.