{HEAD ~ Particular implementations} focus on {TAIL ~ syntax elements} coded using entropy coding, including, for example, Context based Adaptive Binary Arithmetic Coding  
focus on
{ HEAD ~ Particular implementations } focus on { TAIL ~ syntax elements } coded using entropy coding , including , for example , Context based Adaptive Binary Arithmetic Coding
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH