Alternatively, {HEAD ~ the electronic device} 112 can search the feature index to determine whether the item is contained in {TAIL ~ the sensor data} 
Alternatively , { HEAD ~ the electronic device } 112 can search the feature index to determine whether the item is contained in { TAIL ~ the sensor data }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL