{HEAD ~ The controller} 52 can include {TAIL ~ an algorithm} to process the input to achieve a weighted average 
{ HEAD ~ The controller } 52 can include { TAIL ~ an algorithm } to process the input to achieve a weighted average
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH