Conductor 50 can be composed of {TAIL ~ copper}, {HEAD ~ silver}, or silver plated copper 
Conductor 50 can be composed of { TAIL ~ copper } , { HEAD ~ silver } , or silver plated copper
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH