A small boy is sitting on a stack of tires.
A small boy is sitting.
Sitting on a stack of tires is a type of sitting.
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 s1 x1.(Actor(e1,x1) & v_sit(e1) & n_boy(x1) & a_small(s1) & Theme(s1,x1))