Playing golf is one of my favorite hobbies. It's a game where players use different types of clubs to try and hit a ball into a designated hole. 
I don't know anything about golf! How many types of clubs do they typically use in a game?
Golf course
A golf course is the grounds where the game of golf is played. It comprises a series of holes, each consisting of a teeing ground, a fairway, the rough and other hazards, and a green with a flagstick ("pin") and hole ("cup"). A standard round of golf consists of 18 holes. Most courses contain 18 holes; some share fairways or greens, and a subset has nine holes, played twice per round. Par-3 courses consist of nine or 18
Outline of golf
The following outline is provided as an overview of and topical guide to golf:
Golf – precision club and ball sport, in which competing players (or golfers) use many types of clubs to hit balls into a series of holes on a golf course using the fewest strokes.
What type of thing is golf?
Golf can be described as all of the following:
- a form of entertainment or recreation
- a game
- a ball game
- a sport
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