receive, responsive to causing the third command to be transmitted, backscattered from the tag a combination made from {HEAD ~ at least portions} of {TAIL ~ the first code} and the response without causing any commands to be transmitted while the combination is being backscattered 
receive , responsive to causing the third command to be transmitted , backscattered from the tag a combination made from { HEAD ~ at least portions } of { TAIL ~ the first code } and the response without causing any commands to be transmitted while the combination is being backscattered
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH