A man in a brown coat is playing the saxophone.
The man is playing the cello.
Saxophone and the cello are two different instruments
exists e1 s1 x1 x2 x3.(n_saxophone(x3) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & in(x1,x2) & n_coat(x2) & a_brown(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(n_cello(x2) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1))