system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
How many grandslams are there in Tennis in one year?


assistant
There are four grandslams in one year. It starts with Australian open which is played on hard court. Second one is French open which is played on clay court. Third is Wimbledon which is played on grass court and final one is US Open is played on hard court.