18. The computer program product of claim 15 , further comprising program instructions for determining a context for the request, wherein the context is information external to the at least one search term, wherein the tags contain context-dependent information, and wherein the program instructions for collecting further match the context with the context-dependent information stored in the tags to obtain the collected set of electronic documents.
18. The computer program product of claim 15 , further comprising program instructions for determining a context for the request, wherein the context is information external to the at least one search term, wherein the tags contain context-dependent information, and wherein the program instructions for collecting further match the context with the context-dependent information stored in the tags to obtain the collected set of electronic documents. 19. The computer program product of claim 18 , wherein the program instructions for the first matching further select from among multiple context-dependent sets of entries in the one or more of the multiple dictionaries according to a context provided with the request, whereby the applying applies different subject-determining-power scores from the one or more of the multiple dictionaries for the at least one search term according to the context.