Three girls doing back flips on the beach.
Girls are doing back flips at the beach.
Girls do back flips together.
exists e2 e1 s1 x1 x2 x3.(n_beach(x3) & on(e2,x3) & Actor(e2,x1) & v_flip(e2) & a_back(s1) & Manner(e1,s1) & Actor(e1,x2) & v_do(e1) & (x1 = x2) & n_girl(x1) & card_eq_3(x1))
exists e2 e1 s1 x1 x2 x3.(n_beach(x3) & at(e2,x3) & Actor(e2,x1) & v_flip(e2) & a_back(s1) & Manner(e1,s1) & Actor(e1,x2) & v_do(e1) & (x1 = x2) & n_girl(x1))