If no address was obtained by the reverse look up, or the address was not verified by the zip code, then the caller is asked for {HEAD ~ his/her street name} which is obtained by voice recognition or by {TAIL ~ operator involvement}  
is obtained by
If no address was obtained by the reverse look up , or the address was not verified by the zip code , then the caller is asked for { HEAD ~ his / her street name } which is obtained by voice recognition or by { TAIL ~ operator involvement }
OTH OTH OTH OTH OTH OTH OTH OTH 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 HEAD HEAD OTH REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH