{HEAD ~ The apparatus} has {TAIL ~ the attributes} of being of a reduced size and simplified operation, and is inexpensive to manufacture compared to other purification systems 
has
{ HEAD ~ The apparatus } has { TAIL ~ the attributes } of being of a reduced size and simplified operation , and is inexpensive to manufacture compared to other purification systems
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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