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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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 before 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.

Input: Consider Input: Head: PersonX acts on PersonY's behalf<sep>Tail: receives responsibility

Output: No


Input: Consider Input: Head: PersonX declares PersonX's independence<sep>Tail: PersonX decides to work from home now

Output: Yes


Input: Consider Input: Head: PersonX wins the award<sep>Tail: PersonX shouts a victory cry


Output: Yes