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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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

Ex Input:
Head: PersonX acts in PersonY capacity<sep>Tail: story

Ex Output:
No


Ex Input:
Head: PersonX loses PersonX's position<sep>Tail: PersonX has to walk to the back of the line

Ex Output:
Yes


Ex Input:
Head: PersonX acts like a man<sep>Tail: looked upon

Ex Output:

No