c) submitting a plurality of Application Programming Interface requests to the application on {HEAD ~ behalf} of {TAIL ~ the client device} to fulfill operations solicited by the request received from the client device, and capturing output from the application responsive to the plurality of API requests; and 
of
c ) submitting a plurality of Application Programming Interface requests to the application on { HEAD ~ behalf } of { TAIL ~ the client device } to fulfill operations solicited by the request received from the client device , and capturing output from the application responsive to the plurality of API requests ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH