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: Tory MP Patrick Mercer has said he will co-operate fully with any investigation by a Commons watchdog into his relationship with a security firm.

Conservative MP says he will co-operate with any probe into work for security firm