A man and a woman, both wearing hiking gear, are standing on the edge of a large canyon.
A man and a woman are on a boat celebrating the Fourth of July.
canyon is contradictory to boat
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_edge(x8) & on(e2,x8) & of(x8,x9) & n_canyon(x9) & a_large(s1) & Theme(s1,x9) & Actor(e2,x1) & v_stand(e2) & subset_of(x3,x1) & rel(x3,x4) & Theme(e1,x6) & Actor(e1,x5) & v_wear(e1) & n_gear(x6) & of(x6,x7) & n_hiking(x7) & (x4 = x5) & n_thing(x4) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
exists p1 x1 x2 x3 x6 x7.(n_date(x7) & a_date_month_07(x7) & a_date_month_07(x7) & n_fourth(x6) & exists e1 x4 x5.(on(x1,x4) & Theme(e1,x6) & Actor(e1,x5) & v_celebrate(e1) & of(x6,x7) & (x4 = x5) & n_boat(x4)) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))