{HEAD ~ The invention} identifies a plurality of articles from which information is to be extracted and a plurality of information extractors for extracting {TAIL ~ the information} from the articles 
{ HEAD ~ The invention } identifies a plurality of articles from which information is to be extracted and a plurality of information extractors for extracting { TAIL ~ the information } from the articles
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH