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 the bulls win their first championship?" whose answer is 1991.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the chicago bulls win their first championship
Useful Output:

Doc 1: Thirty years ago today, the Chicago Bulls won their first NBA championship with a 108–101 victory over the Los Angeles Lakers.
Doc 2: The Chicago Bulls trailed the Utah Jazz 86-83 in Game 6 of the 1998 Finals with 41.9 seconds remaining, and Game 7 was not only a possibility, but a problem.
Doc 3: Full series highlights from Michael Jordan and the Bulls' first championship against the Lakers in 1991!
Doc 4: From 1991 - 1993, the Bulls won consecutive championships becoming the first team since the Boston Celtics to win three consecutive championships. In the
Doc 5: After two years of missing out on the NBA Finals, the Chicago Bulls made history during the 1996 season. They would go out and win 72 regular