Two dogs play in the surf.
Two dogs rip a man's arm off.
Dogs that play do not usually rip a man's arm off
exists x1 x2 x3.(n_surf(x3) & a_topic(x1) & in(x1,x3) & n_play(x1) & of(x1,x2) & n_dog(x2) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_rip(e1) & n_arm(x3) & of(x3,x2) & n_man(x2) & n_dog(x1) & card_eq_2(x1))