Unwilling to believe the Stone is not magical, Sierra and Rinkus betray Pterano.

Entity and relation annotations:
id: 0
type: entity
value: text: Sierra
labels: <Person>
id: 1
type: entity
value: text: Rinkus
labels: <Person>
id: 2
type: entity
value: text: Pterano
labels: <Person>
type: relation
to_id: 2
labels: Person:harms:Person
from_id: 0
type: relation
to_id: 2
labels: Person:harms:Person
from_id: 1