Cheerleaders are performing in a gym
the people are playing basketball
Cheerleaders cheer, they are not people who play basketball
exists e1 x1 x2.(in(e1,x2) & n_gym(x2) & Actor(e1,x1) & v_perform(e1) & n_cheerleader(x1))
exists e1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_basketball(x2))