In this task, you are given two phrases: Head and Tail, separated with <sep>. The Head and the Tail events are short phrases possibly involving participants. The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ). PersonX is always the subject of the event. You have to determine whether the Head happens after the Tail or not. Classify your answers into "Yes" and "No". The phrase may also contain "___", a placeholder that can be an object, a person, and/or an action.

Example Input: Head: PersonX keeps PersonX on PersonX's toes<sep>Tail: PersonX reads a self help book
Example Output: Yes

Example Input: Head: PersonX gives PersonY a trial<sep>Tail: PersonX sits down at the judge's bench
Example Output: Yes

Example Input: Head: PersonX aces the exam<sep>Tail: has cramps in their wrist from a possibly long test requiring extended pencil writing and/or computer use
Example Output:
No