A person is sitting under a purple umbrella on the beach.
A person is at the beach.
A person is sitting under a purple umbrella on the beach is that the person is at the beach
exists e1 s1 x1 x2 x3.(n_beach(x3) & on(e1,x3) & under(e1,x2) & n_umbrella(x2) & a_purple(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_person(x1))
exists p1 x1 x2.(n_beach(x2) & at(x1,x2) & n_person(x1))