A man walks on a rope bridge.
The man is outside.
Rope bridges are only found outside, therefore if the man walks on a rope bridge he must be outside.
exists e1 x1 x2 x3.(on(e1,x2) & n_bridge(x2) & of(x2,x3) & n_rope(x3) & Actor(e1,x1) & v_walk(e1) & n_man(x1))
exists s1 x1.(n_man(x1) & Theme(s1,x1) & a_outside(s1))