After destroying the Metal Gear, Snake confronts and defeats Big Boss's phantom.

Entity and relation annotations:
id: 0
type: entity
value: text: the Metal Gear
labels: <Production>
id: 1
type: entity
value: text: Snake
labels: <Person>
id: 2
type: entity
value: text: Big Boss
labels: <Person>
type: relation
to_id: 2
labels: Person:competes_with:Person
from_id: 1