Assertion: bluff | /r/CapableOf | function as visual reference
Facets:
value: during the 19th century
type: TEMPORAL
value: for explorers
type: TRANSITIVE-OBJECT
value: for travelers
type: TRANSITIVE-OBJECT
Source sentences:
text: During the 19th century, the bluff functioned as a visual reference for explorers and travelers and later served as a limestone quarry.