Two boys are standing on sand next to an overturned chair.
After the sandstorm, the boys were left standing, but not the chair.
The chair is overturned because of the sandstorm
exists e1 s1 x1 x2 x3.(to(e1,x3) & n_chair(x3) & a_overturned(s1) & Theme(s1,x3) & r_next(e1) & on(e1,x2) & n_sand(x2) & Actor(e1,x1) & v_stand(e1) & n_boy(x1) & card_eq_2(x1))
exists p1 x1 x2 x5.(n_sandstorm(x2) & n_chair(x5) & n_boy(x1) & after(p1,x2) & exists e1 x3 x4.((x1 = x3) & -subset_of(x5,x3) & subset_of(x4,x3) & n_standing(x4) & Theme(e1,x4) & v_leave(e1)))