A climber approaches the top of a cliff high above the surrounding terrain.
A diver looks for buried treasure.
There is either a climber or a diver.
exists e2 e1 x1 x2 x3 x4.(n_terrain(x4) & Actor(e2,x4) & v_surround(e2) & n_top(x2) & r_high(e1) & above(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_approach(e1) & of(x2,x3) & n_cliff(x3) & n_climber(x1))
exists e1 e2 x1 x2.(for(e1,x2) & n_treasure(x2) & Theme(e2,x2) & v_bury(e2) & Actor(e1,x1) & v_look(e1) & n_diver(x1))