A tribesman makes his way up a tree with his feet and his hands.
A man is outside climbing a tree.
A tribesman is a man, climbing is an upwards motion  and trees are primarily found outdoors
exists e1 x1 x2 x3 x4 x5 x6.(Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & subset_of(x6,x2) & n_hand(x6) & of(x6,x1) & n_male(x1) & n_male(x1) & n_male(x1) & subset_of(x3,x2) & up(x3,x4) & with(x4,x5) & n_foot(x5) & of(x5,x1) & n_tree(x4) & n_way(x3) & of(x3,x1) & n_tribesman(x1))
exists e1 s1 x1 x2.(for(s1,e1) & Theme(e1,x2) & Actor(e1,x1) & v_climb(e1) & n_tree(x2) & Theme(s1,x1) & a_outside(s1) & n_man(x1))