A child climbs up a climbing rock wall inside.
An old man is climbing the stairs.
A child cannot be an old man and stairs is different from a rock wall.
exists e1 e2 s1 x1 x2 x3 x4.(a_up(s1) & Manner(e2,s1) & Theme(e2,x2) & Actor(e2,x1) & v_climb(e2) & n_inside(x2) & of(x2,x4) & n_wall(x4) & of(x2,x3) & n_rock(x3) & Actor(e1,x2) & v_climb(e1) & n_child(x1))
exists e1 s1 x1 x2.(n_stair(x2) & Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_man(x1) & a_old(s1) & Theme(s1,x1))