A Man playing red drums, and singing into a microphone.
Nobody is singing.
A man cannot be singing if nobody is singing.
exists e2 e1 s1 x1 x2 x3 x4.(into(e2,x4) & n_microphone(x4) & Actor(e2,x3) & v_sing(e2) & n_man(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_drum(x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
-exists e1 x1.(Actor(e1,x1) & v_sing(e1) & n_person(x1))