a man on a harness in the middle of climbing through a cave.
There is a man in a cave in the middle of nowhere.
A man climbing through a cave doesn't necessarily imply middle of nowhere.
exists e1 x1 x2 x3 x4 x5.(n_middle(x3) & a_topic(x1) & on(x1,x2) & in(x2,x3) & through(e1,x5) & n_cave(x5) & Actor(e1,x4) & v_climb(e1) & (x3 = x4) & n_harness(x2) & n_man(x1))
exists p1 x1 x4.(n_middle(x4) & exists x2 x3 x5.((x1 = x2) & in(x2,x3) & in(x3,x4) & of(x4,x5) & n_nowhere(x5) & n_cave(x3) & n_man(x2)))