TASK DEFINITION: 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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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.
PROBLEM: Head: PersonX buys a new wallet<sep>Tail: PersonX puts all money in wallet

SOLUTION: Yes

PROBLEM: Head: PersonX watches football<sep>Tail: PersonX turns off the game at the half because the refs are calling too many penalties

SOLUTION: Yes

PROBLEM: Head: PersonX buys a new hat<sep>Tail: PersonX wears the hat

SOLUTION:
Yes