Thus, {HEAD ~ the head} of user 20 is placed into contact with {TAIL ~ the inside surface} 48 of hood 12 
Thus , { HEAD ~ the head } of user 20 is placed into contact with { TAIL ~ the inside surface } 48 of hood 12
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH