A child in a white shirt is sucking on an object.
A child is sucking on a pacifier.
The object the child in white shirt is sucking on may not be a pacifier.
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_object(x3) & Actor(e1,x1) & v_suck(e1) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_child(x1))
exists e1 x1 x2.(on(e1,x2) & n_pacifier(x2) & Actor(e1,x1) & v_suck(e1) & n_child(x1))