A street musician plays drums at night.
There are musical instruments in the dark.
Drums are a type of musical instrument and at night is is dark.
exists e1 x1 x2 x3 x4.(at(e1,x4) & n_night(x4) & Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_drum(x3) & n_musician(x1) & of(x1,x2) & n_street(x2))
exists p1 x1 x2.(n_dark(x2) & in(p1,x2) & exists s1 x3.((x1 = x3) & n_instrument(x3) & a_musical(s1) & Theme(s1,x3)))