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: "Which National basketball association did Erik Jon Spoelstra coach for?" whose answer is National Basketball Association's Miami Heat..
Each document should contain about 30 words, and these documents should contain useful information.

Query: Erik Jon Spoelstra NBA coaching career
Useful Output:

Doc 1: In 15 seasons at the helm, Spoelstra has already established his place in the HEAT record book as the winningest coach in franchise history. He holds the
Doc 2: In four years, he has led the Heat to the NBA Finals twice and won the championship last season.
Doc 3: He is best known for coaching the Miami Heat of the NBA. He initially started working for the Heat in 2001 as an assistant coach and director of
Doc 4: 2× NBA Champion (2012, 2013) · 2× NBA All-Star Game Head Coach (2013, 2022) · NBCA Co-Coach of the Year (2017) · Named among the Top 15 Coaches in
Doc 5: Entering the 2023 NBA Finals, Spoelstra has a 108-71 career record in the playoffs. The Heat have made the playoffs in 13 of his 15 seasons,