A little boy is wearing a snorkel in a bathtub.
A boy is in the bathtub.
A little boy can be called a boy.
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & in(x2,x3) & n_bathtub(x3) & n_snorkel(x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_bathtub(x2) & in(x1,x2) & n_boy(x1))