The child in the green shirt is on a machine with wheels.
a child is dancing.
A kid on a machine can not be dancing at the same time.
exists p1 s1 x1 x2.(n_shirt(x2) & a_green(s1) & Theme(s1,x2) & n_child(x1) & exists x3 x4.(on(x1,x3) & with(x3,x4) & n_wheel(x4) & n_machine(x3)) & in(x1,x2))
exists e1 x1.(Actor(e1,x1) & v_dance(e1) & n_child(x1))