Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: About 25,000 music fans are to attend the Green Man festival in the Brecon Beacons which starts on Thursday.

Green Man festival in the Brecon Beacons to attract 25,000