The custom server performs test cases and saves {HEAD ~ test results} of {TAIL ~ the test case}, which the custom server communicates back to the execution server 
of
The custom server performs test cases and saves { HEAD ~ test results } of { TAIL ~ the test case } , which the custom server communicates back to the execution server
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH