Application of the SEO to the array, followed by a measurement of the array, yields {HEAD ~ the value} of {TAIL ~ certain conditional probabilities} that we wish to know 
Application of the SEO to the array , followed by a measurement of the array , yields { HEAD ~ the value } of { TAIL ~ certain conditional probabilities } that we wish to know
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH