tectonic plates collide at convergent boundaries
ixocarpalactone is withanolide. earth has tectonic_plates perulactone is withanolide. crossroads is not where_two_roads_intersect_each_other. crossroads is where_two_roads_intersect_each_other. tectonic_plate is not stone. perulactone is not withanolide. crossroads is overlap. crossroads is not overlap. tectonic_plate is stone.