A small boy is sitting on a stack of tires.
A small boy is stuffed inside a giant tire and is rolling down a hill.
The boy can't be sitting on tires and be stuffed inside a tire at the same time.
exists e1 s1 x1 x2 x3.(on(e1,x2) & of(x2,x3) & n_tire(x3) & n_stack(x2) & Actor(e1,x1) & v_sit(e1) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e1 e2 s1 s2 s3 s4 x1 x2 x3 x4.(a_down(s4) & Manner(e2,s4) & Theme(e2,x4) & Actor(e2,x3) & v_roll(e2) & n_hill(x4) & n_boy(x3) & a_small(s3) & Theme(s3,x3) & inside(e1,x2) & n_tire(x2) & a_giant(s2) & Theme(s2,x2) & Theme(e1,x1) & v_stuff(e1) & n_boy(x1) & a_small(s1) & Theme(s1,x1))