{HEAD ~ An outlet hood} 16 is affixed to the upper portion 18 of {TAIL ~ the column} 12 
{ HEAD ~ An outlet hood } 16 is affixed to the upper portion 18 of { TAIL ~ the column } 12
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH