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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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 wins first place<sep>Tail: PersonX runs faster than the others
Example Output: Yes

Example Input: Head: PersonX acquires PersonY knowledge<sep>Tail: He finally passes the level.
Example Output: No

Example Input: Head: PersonX accidentally cut ___<sep>Tail: To treat X
Example Output:
No