Juan Manuel Fangio led Alberto Ascari by two points before the race.

Entity and relation annotations:
id: 0
type: entity
value: text: Juan Manuel Fangio
labels: <Person>
id: 1
type: entity
value: text: Alberto Ascari
labels: <Person>
type: relation
to_id: 1
labels: Person:competes_with:Person
from_id: 0
type: relation
to_id: 0
labels: Person:competes_with:Person
from_id: 1