A man in a sweatshirt is waving flags.
A man is outside waving flags.
Both subjects are waving flags
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_wave(e1) & n_flag(x3) & in(x1,x2) & n_sweatshirt(x2) & n_man(x1))
exists e1 s1 x1 x2.(for(s1,e1) & Theme(e1,x2) & Actor(e1,x1) & v_wave(e1) & n_flag(x2) & Theme(s1,x1) & a_outside(s1) & n_man(x1))