{TAIL ~ A building insulation} 1 in which said cellulose fiber is {HEAD ~ a long fiber cellulose} 
{ TAIL ~ A building insulation } 1 in which said cellulose fiber is { HEAD ~ a long fiber cellulose }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD