A man is playing a saxophone in a public space.
There is a musician playing an instrument.
A man is a musician while a saxophone is an instrument.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_space(x3) & a_public(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_saxophone(x2) & n_man(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_instrument(x4) & (x2 = x3) & n_musician(x2))