A small boy in sandals sits on a wooden post in a field.
A boy wearing tennis shoes plays basketball on a court.
you can not be in sandals and wearing tennis shoes at the same time
exists e1 s1 s2 x1 x2 x3 x4.(on(e1,x3) & in(x3,x4) & n_field(x4) & n_post(x3) & a_wooden(s2) & Theme(s2,x3) & Actor(e1,x1) & v_sit(e1) & in(x1,x2) & n_sandal(x2) & n_boy(x1) & a_small(s1) & Theme(s1,x1))
exists e2 e1 x1 x2 x3 x4 x5 x6.(on(e2,x6) & n_court(x6) & Theme(e2,x5) & Actor(e2,x1) & v_play(e2) & n_basketball(x5) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_shoe(x3) & of(x3,x4) & n_tennis(x4) & (x1 = x2) & n_boy(x1))