In some cases {HEAD ~ protection} of certain reactive functionalities may be necessary to achieve some of {TAIL ~ the above transformations} 
In some cases { HEAD ~ protection } of certain reactive functionalities may be necessary to achieve some of { TAIL ~ the above transformations }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL