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: "when did nike come out with just do it?" whose answer is 1988.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did nike introduce just do it slogan
Useful Output:

Doc 1: Few brand commercials are as recognized as Nike's 1988 brand slogan launch commercial, eponymously named after its slogan. Here's the iconic 30-
Doc 2: Gilmore's last words might make a good slogan for athletic gear, said the resonance of “Just Do It” was completely inadvertent and unforeseen.
Doc 3: Nike's last words: the rise and fall of “Just Do It”  Share to: On January 17, 1977, Gary Gilmore was waiting for his execution for the murder
Doc 4: Long before it became a dominant sports and fashion brand, Nike was struggling in 1987, failing to keep pace with the more fitness-focused
Doc 5: Dan Wieden, the founder of ad agency Wieden and Kennedy, was inspired to adapt the phrase to "Just Do It" for a 1988 TV ad which introduced the