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: "what year did the polaroid 600 come out?" whose answer is 1978.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the polaroid 600 series come out
Useful Output:

Doc 1: My love for Polaroid cameras (and all photography) came in adulthood after I found a 1977 Polaroid One Step Land Camera in an antique store. It
Doc 2: In 1982, Polaroid introduced the next generation of integral film, Type-600, rated at ASA-640 it clocked in at being four times faster than the
Doc 3: Polaroid 600 Color instant film works with all classic Polaroid cameras¹ and all the new full-size Polaroid cameras (including the I-2).
Doc 4: The One600 is one of the best built 600 type cameras out there. The design takes after the Spectra/Image lines, with a durable fold-up design.
Doc 5: It was introduced c.1983. Specifications. Lens: 116mm (?) f/11 (?), Single-element plastic (?); Fixed focus (sharpest at 4-5