A man holds his child on his shoulders.
A child sits on a man's shoulders.
When the man holds the child on his shoulders, the child is sitting.
exists e1 x1 x2 x3.(on(e1,x3) & n_shoulder(x3) & of(x3,x1) & n_male(x1) & n_male(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_child(x2) & of(x2,x1) & n_man(x1))
exists e1 x1 x2 x3.(on(e1,x3) & n_shoulder(x3) & of(x3,x2) & n_man(x2) & Actor(e1,x1) & v_sit(e1) & n_child(x1))