A person is rock climbing.
the person is up high
The person is not necessarily up high.
exists p1 x1.(exists x2 x3.((x1 = x2) & n_climb(x2) & of(x2,x3) & n_rock(x3)) & n_person(x1))
exists s1 x1.(n_person(x1) & r_up(s1) & Theme(s1,x1) & a_high(s1))