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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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

Ex Input:
Head: PersonX accepts one 's ___<sep>Tail: to evaluate himself/herself

Ex Output:
No


Ex Input:
Head: PersonX acts on PersonY's behalf<sep>Tail: to have help

Ex Output:
No


Ex Input:
Head: PersonX shakes like a leaf<sep>Tail: PersonX falls onto the ground in a dark alley

Ex Output:

Yes