{HEAD ~ Implementations} may relate to various aspects of modifying, or using, a coded bitstream, or to recovering {TAIL ~ watermarking information} from data 
relate to recovering
{ HEAD ~ Implementations } may relate to various aspects of modifying , or using , a coded bitstream , or to recovering { TAIL ~ watermarking information } from data
HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH