Malchow represented the United States in three consecutive Summer Olympics.

Entity and relation annotations:
id: 0
type: entity
value: text: Malchow
labels: <Person>
id: 1
type: entity
value: text: the United States
labels: <Location>
id: 2
type: entity
value: text: Summer Olympics
labels: <Event>
type: relation
to_id: 1
labels: Person:resides_at:Location
from_id: 0
type: relation
to_id: 2
labels: Person:participates_in:Event
from_id: 0