A quartet of male musicians, dressed simply in street clothes, play a tune in front of a store window.
They are a band of barbershop quartet
Play a tune in front of a store window does not necessarily mean a barbershop quartet.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(in(e2,x7) & of(x7,x8) & n_window(x8) & of(x8,x9) & n_store(x9) & n_front(x7) & Theme(e2,x6) & Actor(e2,x1) & v_play(e2) & n_tune(x6) & of(x1,x2) & in(e1,x4) & n_clothes(x4) & of(x4,x5) & n_street(x5) & a_simply(s2) & Manner(e1,s2) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_musician(x2) & a_male(s1) & Theme(s1,x2) & n_quartet(x1))
exists p1 x1.(n_thing(x1) & exists x2 x3 x4.((x1 = x2) & of(x2,x3) & n_quartet(x3) & of(x3,x4) & n_barbershop(x4) & n_band(x2)))