{HEAD ~ A wall} is formed in {TAIL ~ the bottom ply} which defines a well into which a fragrance sample is deposited 
{ HEAD ~ A wall } is formed in { TAIL ~ the bottom ply } which defines a well into which a fragrance sample is deposited
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH