The method depends on {TAIL ~ the type} of {HEAD ~ shell} and on how the shape memory material is utilized 
The method depends on { TAIL ~ the type } of { HEAD ~ shell } and on how the shape memory material is utilized
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH