{TAIL ~ The system} also induces a shut off in the first channel of said manifold for preventing a flow of said first material in {HEAD ~ said first channel} 
{ TAIL ~ The system } also induces a shut off in the first channel of said manifold for preventing a flow of said first material in { HEAD ~ said first channel }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD