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: A man who was poisoned by Novichok has spoken "briefly" to officers trying to find the source of the nerve agent, Scotland Yard has said.

Novichok victim Charlie Rowley speaks to police officers