Four musicians playing music in a group on the sidewalk.
The four musicians have an audience.
A group implies that there are more people in the area so there is likely an audience.
exists e1 x1 x2 x3 x4 x5.(n_sidewalk(x5) & a_topic(x1) & on(e1,x5) & in(e1,x4) & n_group(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_music(x3) & (x1 = x2) & n_musician(x1) & card_eq_4(x1))
exists e1 x1 x2.(n_musician(x1) & card_eq_4(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_audience(x2))