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: The exam regulator in England says its chair has issued "an expression of regret" over any offence caused by comments about Welsh ministers.

Ofqual 'expression of regret' in Welsh government GCSE row