A child is being swung by her arms while another child watches.
The child is being swung by his aunt.
A child being swung by her arms does not necessarily mean by his aunt.
exists e1 p1 x1 x2.(exists e2 x3.(Actor(e2,x3) & v_watch(e2) & n_child(x3) & -(x3 = x1)) & n_child(x1) & n_child(x1) & while(e1,p1) & Actor(e1,x2) & n_arm(x2) & of(x2,x1) & n_female(x1) & Theme(e1,x1) & v_swing(e1))
exists e1 x1 x2.(n_aunt(x2) & of(x2,x1) & n_male(x1) & n_child(x1) & Actor(e1,x2) & Theme(e1,x1) & v_swing(e1))