{HEAD ~ The length L2} of flexible region 228 should be sufficient that flexible region 228 spans {TAIL ~ the entire length} of bend region 218 
{ HEAD ~ The length L2 } of flexible region 228 should be sufficient that flexible region 228 spans { TAIL ~ the entire length } of bend region 218
HEAD 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 OTH OTH OTH OTH