Two young men are having good time.
two brothers play together
Two young men are not necessarily brothers, and having a good time does not necessarily imply play.
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_time(x2) & a_good(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1.(a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_brother(x1) & card_eq_2(x1))