{HEAD ~ The apparatus} includes a trough which extends from a take off location defined by {TAIL ~ a take off roller}  
{ HEAD ~ The apparatus } includes a trough which extends from a take off location defined by { TAIL ~ a take off roller }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH