Five young men are playing music in the street.
The men have been playing music for hours.
You can not infer it's been hours.
exists e1 s1 x1 x2 x3.(n_street(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1) & card_eq_5(x1))
exists e1 x1 x2 x3.(n_man(x1) & for(e1,x3) & n_hour(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_music(x2))