A man is playing a drum in a marching band.
A man is playing music
The man is playing music, so it is likely hes playing a drum
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & in(x2,x3) & n_band(x3) & a_marching(s1) & Theme(s1,x3) & n_drum(x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2) & n_man(x1))