A person sitting near the beach.
A college student is sitting near the bench.
Not all person sitting near the beach is a college student.
exists e1 x1 x2 x3.(n_beach(x3) & a_topic(x1) & near(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_person(x1))
exists e1 x1 x2 x3.(n_bench(x3) & near(e1,x3) & Actor(e1,x1) & v_sit(e1) & n_student(x1) & of(x1,x2) & n_college(x2))