set(binary_resolution).
clear(print_initial_clauses).
clear(print_kept).
clear(print_given).
assign(max_seconds,1).
assign(stats,none).

formulas(sos).
-stench(12).
-breeze(21).
wumpus(x) | pit(x) | safe(x).
-wumpus(x) | -neighbor(x,y) | stench(y).
-pit(x) | -neighbor(x,y) | breeze(y).
-neighbor(x,y) | neighbor(y,x).
neighbor(11,12).
neighbor(11,21).
neighbor(12,13).
neighbor(12,22).
neighbor(13,14).
neighbor(13,23).
neighbor(14,24).
neighbor(21,22).
neighbor(21,31).
neighbor(22,23).
neighbor(22,32).
neighbor(23,24).
neighbor(23,33).
neighbor(24,34).
neighbor(31,32).
neighbor(31,41).
neighbor(32,33).
neighbor(32,42).
neighbor(33,34).
neighbor(33,43).
neighbor(34,44).
neighbor(41,42).
neighbor(42,43).
neighbor(43,44).
end_of_list.

formulas(goals).
safe(22).
end_of_list.