The child is surrounded by bubbles while in the bathtub.
My mom is surrounded by bubbles while in the bathtub.
a mom and a child have different ages
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 e1 x1 x2 x3.(n_bathtub(x3) & in(e1,x3) & r_while(e1) & Actor(e1,x1) & n_bubble(x1) & Theme(e1,x2) & v_surround(e1) & n_mom(x2) & of(x2,x1) & n_person(x1))