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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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 is a part, portion, or makeup of 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: step<sep>Tail: tread

Ex Output:
Yes


Ex Input:
Head: automobile<sep>Tail: heater

Ex Output:
Yes


Ex Input:
Head: PersonX asks PersonY's mother<sep>Tail: to write down the solution to the problem

Ex Output:

No