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 DUP leader Arlene Foster has said she does not think she bears personal responsibility for the collapse of the RHI scheme.

RHI inquiry: A matter of 'deep regret' says Arlene Foster