Coach Pintu is trying to put together a team of four players for a tennis tournament. He has seven players available: males A, B and C and the females M,N, O and P. All players are of equal ability and there must be at least two males on the team. For a team of four, all players must be able to play with each other player. Player B cannot play with player M, player C cannot play with Player P, player M cannot play with player O.   If player M is in the team, what other players must be in the teams well?