A set of documents written in {HEAD ~ the second language} are then searched for information responsive to {TAIL ~ the translated query} 
A set of documents written in { HEAD ~ the second language } are then searched for information responsive to { TAIL ~ the translated query }
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL