Search, collection and structuring of data

Question

Search engines

Dear Habra-residents, perhaps one of you has met software on the Internet (very preferably free) for solving a similar problem?
According to the search query, information is searched through a given list of search engines (preferably with the ability to specify a list of sites that you should go through in more detail). After that, all the information is saved (with elimination of duplicates) and at the output we get a “rather compact” report.

Answer 1

Is the area really so uninteresting that no one from the IT world was interested in it or heard of it?

Answer 2

The area is interesting, only software in the field of data structuring is exclusively paid.
Look: RCO (Fact Extractor): rco.ru/technology.asp , Avicomp (Ontos): avicomp.ru/services/semantic .