#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa) random validation
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa) various validation
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa) various validation
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa)
#maproulette Self-intersecting_polygon_ways_(Africa) and delete duplicate buildings
#maproulette Self-intersecting_polygon_ways_(Africa)