Unser has competed in the Indy Lights series and Toyota Atlantics Championship.

Entity and relation annotations:
id: 0
type: entity
value: text: Unser
labels: <Person>
id: 1
type: entity
value: text: the Indy Lights series
labels: <Event>
id: 2
type: entity
value: text: Toyota Atlantics Championship
labels: <Event>
id: 3
type: entity
value: text: Toyota
labels: <Organization>
type: relation
to_id: 1
labels: Person:participates_in:Event
from_id: 0
type: relation
to_id: 2
labels: Person:participates_in:Event
from_id: 0
type: relation
to_id: 2
labels: Organization:Organization:Event
from_id: 3