A man rock climbing near the ocean.
A man is sitting at the base of the climbing slope.
A man cannot be rock climbing while sitting.
exists e1 x1 x2 x3 x4.(n_ocean(x4) & a_topic(x1) & near(e1,x4) & Actor(e1,x3) & v_climb(e1) & (x1 = x3) & n_rock(x1) & of(x1,x2) & n_man(x2))
exists e2 e1 x1 x2 x3.(n_slope(x3) & Actor(e2,x3) & v_climb(e2) & n_base(x2) & at(e1,x2) & of(x2,x3) & Actor(e1,x1) & v_sit(e1) & n_man(x1))