On stage, a man in a suit plays French horn while a woman behind him plays piano.
The animals are playing drums.
There can be either a man and a woman or animals.
exists e1 p1 s1 x1 x2 x3 x4.(on(e1,x4) & n_stage(x4) & exists e2 x5 x6.(Theme(e2,x6) & Actor(e2,x5) & v_play(e2) & n_piano(x6) & behind(x5,x1) & n_woman(x5)) & n_male(x1) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_horn(x3) & a_french(s1) & Theme(s1,x3) & in(x1,x2) & n_suit(x2) & n_man(x1))
exists e1 x1 x2.(n_animal(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_drum(x2))