The step of removing portions of the sacrificial layer removes portions of the sacrificial layer that are not covered by {HEAD ~ the first capping structure} to define {TAIL ~ an intermediate structure} 
to define
The step of removing portions of the sacrificial layer removes portions of the sacrificial layer that are not covered by { HEAD ~ the first capping structure } to define { TAIL ~ an intermediate structure }
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 HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL