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