Elements that can be added to silver to produce {HEAD ~ useful silver alloys} include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, scandium, and {TAIL ~ cobalt} 
Elements that can be added to silver to produce { HEAD ~ useful silver alloys } include zinc , aluminum , copper , manganese , germanium , yttrium , bismuth , scandium , and { TAIL ~ cobalt }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL