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 apparent unmasking of a Russian man accused of the Salisbury poisoning has made headlines around the world, but for many the source of the revelation may still be unfamiliar.

Bellingcat: The website behind the Skripal revelation