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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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

Input: Consider Input: Head: PersonX improves PersonY's conditions<sep>Tail: PersonX wants to be charitable

Output: Yes


Input: Consider Input: Head: PersonX plays the trombone<sep>Tail: PersonX joins the school band

Output: Yes


Input: Consider Input: Head: PersonX invites PersonY to come<sep>Tail: PersonX onx throws a surprise birthday party for PersonY


Output: Yes