{HEAD ~ This feature} reduces {TAIL ~ the amount} of reagent required and makes the kit less prone to accidental spillage of the reagents when the package is opened 
{ HEAD ~ This feature } reduces { TAIL ~ the amount } of reagent required and makes the kit less prone to accidental spillage of the reagents when the package is opened
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH