Someone carrying an umbrella while crossing an intersection.
Someone is sitting under an umbrella on the beach.
Sitting under an umbrella is different than carrying an umbrella.
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & while(e1,e2) & Theme(e2,x4) & Actor(e2,x2) & v_cross(e2) & n_intersection(x4) & Theme(e1,x3) & Actor(e1,x2) & v_carry(e1) & n_umbrella(x3) & (x1 = x2) & n_person(x1))
exists e1 x1 x2 x3.(n_beach(x3) & under(e1,x2) & on(x2,x3) & n_umbrella(x2) & Actor(e1,x1) & v_sit(e1) & n_person(x1))