In {HEAD ~ one embodiment}, additional supporting elements are provided besides the supporting element of {TAIL ~ the end part} 
In { HEAD ~ one embodiment } , additional supporting elements are provided besides the supporting element of { TAIL ~ the end part }
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL