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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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 gets a scholarship to college<sep>Tail: PersonX achieves good grades in high school
Example Output: Yes

Example Input: Head: PersonX accidentally bumped<sep>Tail: like they had been stumbled into
Example Output: No

Example Input: Head: PersonX fees PersonX's dog<sep>Tail: PersonX watches PersonX's dog
Example Output:
Yes