A young kid at the beach.
The beach is completely empty.
If there is a young kid at the beach, it is impossible that the beach is completely empty.
exists s1 x1 x2.(n_beach(x2) & a_topic(x1) & at(x1,x2) & n_kid(x1) & a_young(s1) & Theme(s1,x1))
exists s1 x1.(n_beach(x1) & r_completely(s1) & Theme(s1,x1) & a_empty(s1))