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: Prices in the UK's supermarkets will rise by at least 5% over the next six months, according to the former boss of Sainsbury's.

Supermarket prices 'to rise by 5%'