Emerson is buried in Prospect Hill Cemetery in Millis, Massachusetts.

Entity and relation annotations:
id: 0
type: entity
value: text: Emerson
labels: <Person>
id: 1
type: entity
value: text: Prospect Hill Cemetery
labels: <Location>
id: 2
type: entity
value: text: Millis
labels: <Location>
id: 3
type: entity
value: text: Massachusetts
labels: <Location>
type: relation
to_id: 1
labels: Person:died_at:Location
from_id: 0
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 1
type: relation
to_id: 3
labels: Location:located_in:Location
from_id: 2