{HEAD ~ The second mold voids} are connected by {TAIL ~ second runners} locatable over the first runner trails 
{ HEAD ~ The second mold voids } are connected by { TAIL ~ second runners } locatable over the first runner trails
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH