Two men playing trumpet in public in the city.
The men are performing in the city.
Men playing trumpet could be rehearsing or just noodling, not necessarily performing.
exists e1 x1 x2 x3 x4 x5.(n_city(x5) & a_topic(x1) & in(e1,x5) & in(e1,x4) & n_public(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_trumpet(x3) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_city(x2) & n_man(x1) & in(e1,x2) & Actor(e1,x1) & v_perform(e1))