Two ladies walking and talking.
A man and a boy are playing outside.
A man and a boy are not ladies.
exists e2 e1 x1 x2.(Actor(e2,x2) & v_talk(e2) & n_lady(x2) & card_eq_2(x2) & Actor(e1,x1) & v_walk(e1) & n_lady(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x4) & Actor(e1,x1) & v_play(e1) & n_outside(x4) & subset_of(x3,x1) & n_boy(x3) & subset_of(x2,x1) & n_man(x2))