One male and two females (both in swimsuits) are standing next to a sand castle at the beach.
There is a group of dogs swimming in the ocean.
The fact that the male and females are in swimsuits implies that they are human, and they are also standing, so they cannot be swimming dogs.
exists e1 x1 x2 x3 x4 x5 x6 x7 x8.(n_beach(x8) & at(e1,x8) & to(e1,x6) & n_castle(x6) & of(x6,x7) & n_sand(x7) & r_next(e1) & Actor(e1,x1) & v_stand(e1) & subset_of(x3,x1) & rel(x3,x4) & in(x4,x5) & n_swimsuit(x5) & n_thing(x4) & n_female(x3) & card_eq_2(x3) & subset_of(x2,x1) & n_male(x2) & card_eq_1(x2))
exists p1 x1 x5.(n_ocean(x5) & exists e1 x2 x3 x4.((x1 = x2) & in(e1,x5) & Actor(e1,x4) & v_swim(e1) & (x2 = x4) & of(x2,x3) & n_dog(x3) & n_group(x2)))