A boy is wearing a red towel standing on the beach.
A person is at the beach.
a boy is still a person and him standing at the beach is implying he is there
exists e2 e1 s1 x1 x2 x3 x4.(n_beach(x4) & Theme(e2,x2) & Actor(e2,x1) & v_wear(e2) & on(e1,x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_towel(x2) & a_red(s1) & Theme(s1,x2) & n_boy(x1))
exists p1 x1 x2.(n_beach(x2) & at(x1,x2) & n_person(x1))