The data entry system 105 typically includes {HEAD ~ one or more data entry devices} 120, which include {TAIL ~ a user interface} 122, and data entry controllers 125, and data storage devices 127 
The data entry system 105 typically includes { HEAD ~ one or more data entry devices } 120 , which include { TAIL ~ a user interface } 122 , and data entry controllers 125 , and data storage devices 127
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH