Two men are surfing in the ocean on a huge wave.
Two women are sailing
two men surfing does not imply two women sailing.
exists e1 s1 x1 x2 x3.(n_ocean(x2) & in(e1,x2) & on(x2,x3) & n_wave(x3) & a_huge(s1) & Theme(s1,x3) & Actor(e1,x1) & v_surf(e1) & n_man(x1) & card_eq_2(x1))
exists p1 x1.(exists x2.((x1 = x2) & n_sailing(x2)) & n_woman(x1) & card_eq_2(x1))