The child is surrounded by bubbles while in the bathtub.
A boy is in the bathtub.
A boy is a child.
exists e1 x1 x2 x3.(n_bathtub(x3) & n_child(x1) & in(e1,x3) & r_while(e1) & Actor(e1,x2) & n_bubble(x2) & Theme(e1,x1) & v_surround(e1))
exists p1 x1 x2.(n_bathtub(x2) & in(x1,x2) & n_boy(x1))