Preferably, the rendering is by a browser distributed amongst {HEAD ~ a set} of {TAIL ~ devices}, and the content comprises data to be physically rendered 
of
Preferably , the rendering is by a browser distributed amongst { HEAD ~ a set } of { TAIL ~ devices } , and the content comprises data to be physically rendered
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH