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 The names of specific people have been replaced by generic words (e.g., PersonX, PersonY, PersonZ).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 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.
PROBLEM: Head: PersonX calls PersonY's brother<sep>Tail: PersonX looks at the calendar

SOLUTION: Yes

PROBLEM: Head: PersonX pulls stuff toy into PersonY's arms<sep>Tail: PersonX buys a stuff toy for PersonY

SOLUTION: Yes

PROBLEM: Head: PersonX achieves ___ in life<sep>Tail: to help overs

SOLUTION:
No