The two friends are laughing and having a good time.
Two friends are angry at each other.
Two friends laughing cannot be angry at the same time.
exists e2 e1 s1 s2 x1 x2 x3.(n_friend(x1) & card_eq_2(x1) & Theme(e2,x3) & Actor(e2,x1) & v_have(e2) & n_time(x3) & a_good(s2) & Theme(s2,x3) & Theme(e1,x2) & Actor(e1,x1) & v_laugh(e1) & n_time(x2) & a_good(s1) & Theme(s1,x2))
exists s1 x1.(all x2.(n_other(x2) -> at(s1,x2)) & Theme(s1,x1) & a_angry(s1) & n_friend(x1) & card_eq_2(x1))