The child with a green shirt is on a bed smiling
a child is smiling
The child is smiling therefore the child is smiling.
exists p1 s1 x1 x2.(n_child(x1) & exists e1 x3 x4.(on(x1,x3) & Actor(e1,x4) & v_smile(e1) & (x3 = x4) & n_bed(x3)) & with(x1,x2) & n_shirt(x2) & a_green(s1) & Theme(s1,x2))
exists e1 x1.(Actor(e1,x1) & v_smile(e1) & n_child(x1))