Two dogs stand on sand surrounded by water, a deflated basketball and a person on a horse.
Two dogs are frightened by the person on the horse.
There is no mention of the dogs being frightened by the person on the horse.
exists e1 e3 e2 x1 x2 x3 x4 x5 x6 x7 x8.(on(e1,x2) & Actor(e2,x4) & rel(x4,x5) & subset_of(x7,x5) & on(x7,x8) & n_horse(x8) & n_person(x7) & subset_of(x6,x5) & n_basketball(x6) & Theme(e3,x6) & v_deflate(e3) & n_water(x4) & Theme(e2,x3) & v_surround(e2) & (x2 = x3) & n_sand(x2) & Actor(e1,x1) & v_stand(e1) & n_dog(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_horse(x3) & n_person(x2) & Actor(e1,x2) & on(x2,x3) & Theme(e1,x1) & v_frighten(e1) & n_dog(x1) & card_eq_2(x1))