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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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 acquires PersonY interest<sep>Tail: interested

Ex Output:
No


Ex Input:
Head: PersonX accidentally stepped<sep>Tail: gets muddy

Ex Output:
No


Ex Input:
Head: PersonX has the day off from work<sep>Tail: PersonX goes outside for a walk

Ex Output:

Yes