Sitter saw combat on Eniwetok in the Marshall Islands, and Guam in the Marianas.

Entity and relation annotations:
id: 0
type: entity
value: text: Sitter
labels: <Person>
id: 1
type: entity
value: text: Eniwetok
labels: <Location>
id: 2
type: entity
value: text: the Marshall Islands
labels: <Location>
id: 3
type: entity
value: text: Guam
labels: <Location>
id: 4
type: entity
value: text: the Marianas
labels: <Location>
type: relation
to_id: 2
labels: Location:located_in:Location
from_id: 1
type: relation
to_id: 4
labels: Location:located_in:Location
from_id: 3