A man leans back while climbing a mountain tethered to a rope.
A guy is mountain climbing.
Climbing a mountain implies mountain climbing.
exists e1 e3 e2 s1 x1 x2 x3 x4.(while(e1,e3) & Theme(e3,x2) & Actor(e3,x1) & v_climb(e3) & to(e2,x4) & n_rope(x4) & Theme(e2,x3) & v_tether(e2) & (x2 = x3) & n_mountain(x2) & a_back(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lean(e1) & n_man(x1))
exists p1 x1.(exists x2 x3.((x1 = x2) & n_climb(x2) & of(x2,x3) & n_mountain(x3)) & n_guy(x1))