A person is squatting with a yellow umbrella on a beach.
The person is riding a unicyle.
A person cannot be squatting and riding a unicycle simultaneously.
exists e1 s1 x1 x2 x3.(with(e1,x2) & on(x2,x3) & n_beach(x3) & n_umbrella(x2) & a_yellow(s1) & Theme(s1,x2) & Actor(e1,x1) & v_squat(e1) & n_person(x1))
exists e1 x1 x2.(n_person(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_unicyle(x2))