Two men are playing instruments in the street.
The two men are apart of a band.
Men playing instruments in the street are not necessarily apart of a band.
exists e1 x1 x2 x3.(n_street(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_instrument(x2) & n_man(x1) & card_eq_2(x1))
exists p1 s1 x1.(n_man(x1) & card_eq_2(x1) & a_apart(s1) & Manner(p1,s1) & exists x2.(of(x1,x2) & n_band(x2)))