Moreover, {TAIL ~ modifications} and variations in the materials employed may be developed, as will the techniques of applying the island forming material onto {HEAD ~ the base layer} 
Moreover , { TAIL ~ modifications } and variations in the materials employed may be developed , as will the techniques of applying the island forming material onto { HEAD ~ the base layer }
OTH OTH TAIL TAIL TAIL TAIL TAIL OTH 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