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