A little boy is wearing a snorkel in a bathtub.
A girl is snorkeling in the ocean.
It must be either a boy or a girl
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 e1 x1 x2.(n_ocean(x2) & in(e1,x2) & Actor(e1,x1) & v_snorkele(e1) & n_girl(x1))