{HEAD ~ The total number} of prefabricated braces and posts used in the configuration depends on {TAIL ~ the size} of the channel, the flow modification desired, and other considerations 
depends on
{ HEAD ~ The total number } of prefabricated braces and posts used in the configuration depends on { TAIL ~ the size } of the channel , the flow modification desired , and other considerations
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH