You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "The GBU-28 was originally produced by an arsenal located on the bank of what river?" whose answer is Hudson River.
Each document should contain about 30 words, and these documents should contain useful information.

Query: GBU-28 production location
Useful Output:

Doc 1: US-developed laser-guided bunker buster air bomb. Penetration is about 30 m for natural rock and about 6 m for reinforced concrete structures.
Doc 2: Albuquerque-based Applied Research Associates, Inc. (ARA) was the prime contractor for the BLU-138 test warhead, and Pittsbugh-based Superior
Doc 3: Huge explosion at the GRAU 51 Arsenal east of Moscov 22/4-25. Filming location roughly 6km distance. r/CombatFootage icon.
Doc 4: The GBU-28 was initially developed in 1991 for penetrating hardened Iraqi command centers located deep underground. This "bunker buster" was
Doc 5: The GBU-28 is a 5,000-pound (2,268 kg) class laser-guided “bunker busting” bomb produced originally by the Watervliet Arsenal, Watervliet, New