The Java APIs also support searching on the result of a previous search and {HEAD ~ searching} involving {TAIL ~ heterogeneous datastores} 
involving
The Java APIs also support searching on the result of a previous search and { HEAD ~ searching } involving { TAIL ~ heterogeneous datastores }
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