In {TAIL ~ the case} of obtaining the street number, {HEAD ~ voice recognition} is tried first before operator involvement is used 
In { TAIL ~ the case } of obtaining the street number , { HEAD ~ voice recognition } is tried first before operator involvement is used
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH