{TAIL ~ The shape} and materials of {HEAD ~ interior} 16 may reflect and direct the sanitizing agent onto the doorknob 
{ TAIL ~ The shape } and materials of { HEAD ~ interior } 16 may reflect and direct the sanitizing agent onto the doorknob
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH