James "Whitey" Bulger then replaced Winter as boss of the gang.

Entity and relation annotations:
id: 0
type: entity
value: text: Winter
labels: <Person>
id: 1
type: entity
value: text: James "Whitey" Bulger
labels: <Person>
id: 2
type: entity
value: text: boss of the gang
labels: <Title>
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 1