Two men are walking together in an embrace.
Two men know each other.
People embrace because they know each other.
exists e1 s1 x1 x2.(in(e1,x2) & n_embrace(x2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_walk(e1) & n_man(x1) & card_eq_2(x1))
exists x1.(all x2.(n_other(x2) -> exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_know(e1))) & n_man(x1) & card_eq_2(x1))