The flask is adapted for selective passage therethrough of {TAIL ~ a fluid substance} and shaped for convenient comfortable long term carriage on {HEAD ~ the users person} 
The flask is adapted for selective passage therethrough of { TAIL ~ a fluid substance } and shaped for convenient comfortable long term carriage on { HEAD ~ the users person }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD