Sentinel Rock
E257293
Sentinel Rock is a prominent granite monolith in Yosemite National Park, known for its sheer cliffs and striking views from the Yosemite Valley floor.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sentinel Rock canonical | 2 |
| Yosemite Point Buttress (Sentinel area) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2356777 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Sentinel Rock Context triple: [Four Mile Trail, offersViewOf, Sentinel Rock]
-
A.
Morro Rock
Morro Rock is a prominent volcanic plug and coastal landmark located at the entrance to Morro Bay on California’s central coast.
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B.
Worry Rock
Worry Rock is a song by the American punk rock band Green Day from their 1997 album *Nimrod*.
-
C.
Jefferson Rock
Jefferson Rock is a famous rock formation and viewpoint in Harpers Ferry National Historical Park that offers sweeping views of the confluence of the Potomac and Shenandoah rivers.
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D.
Chimney Rock
Chimney Rock is a prominent rock formation in western Nebraska that served as a key navigational landmark for 19th-century pioneers traveling westward.
-
E.
Chimney Rock
Chimney Rock is a scenic coastal promontory in Point Reyes National Seashore known for its dramatic cliffs, ocean views, and seasonal wildflowers and wildlife viewing.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Sentinel Rock Target entity description: Sentinel Rock is a prominent granite monolith in Yosemite National Park, known for its sheer cliffs and striking views from the Yosemite Valley floor.
-
A.
Morro Rock
Morro Rock is a prominent volcanic plug and coastal landmark located at the entrance to Morro Bay on California’s central coast.
-
B.
Worry Rock
Worry Rock is a song by the American punk rock band Green Day from their 1997 album *Nimrod*.
-
C.
Jefferson Rock
Jefferson Rock is a famous rock formation and viewpoint in Harpers Ferry National Historical Park that offers sweeping views of the confluence of the Potomac and Shenandoah rivers.
-
D.
Chimney Rock
Chimney Rock is a prominent rock formation in western Nebraska that served as a key navigational landmark for 19th-century pioneers traveling westward.
-
E.
Chimney Rock
Chimney Rock is a scenic coastal promontory in Point Reyes National Seashore known for its dramatic cliffs, ocean views, and seasonal wildflowers and wildlife viewing.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
granite monolith
ⓘ
natural monument ⓘ rock formation ⓘ |
| access | viewed from valley trails and roads ⓘ |
| climbingType |
multi-pitch routes
ⓘ
traditional climbing ⓘ |
| composition | granite ⓘ |
| elevation | about 7,038 feet above sea level ⓘ |
| featureType |
buttress
ⓘ
cliff ⓘ |
| formedBy |
glacial erosion
ⓘ
river erosion ⓘ |
| geologicalAge | Mesozoic granite ⓘ |
| governingBody |
U.S. National Park Service
ⓘ
linked to:
National Park Service
|
| hasCliffType | sheer cliffs ⓘ |
| hasPhotoSubject | frequently photographed Yosemite landmark ⓘ |
| hasRoute |
Chouinard–Herbert route
ⓘ
Yosemite Point Buttress (Sentinel area) ⓘ
linked to:
Sentinel Rock
|
| hazard | rockfall risk on and below cliffs ⓘ |
| inNationalRegisterContext | within a U.S. National Historic Landmark district (Yosemite Valley) ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Mariposa County, California ⓘ
linked to:
Mariposa County
United States ⓘ
linked to:
United States of America
Yosemite National Park ⓘ Yosemite Valley ⓘ |
| mountainRange | Sierra Nevada ⓘ |
| nameOrigin | named for its sentinel-like position over Yosemite Valley ⓘ |
| nearbyFeature |
Cook’s Meadow
ⓘ
Sentinel Falls ⓘ Yosemite Falls ⓘ Yosemite Village ⓘ |
| notableFor |
prominent vertical rock face
ⓘ
striking views from Yosemite Valley floor ⓘ |
| overlooks | Yosemite Valley ⓘ |
| partOf | Yosemite National Park cliff formations ⓘ |
| prominence | about 1,000 feet above Yosemite Valley floor ⓘ |
| region | western Sierra Nevada ⓘ |
| tourism |
popular scenic landmark
ⓘ
visible from many viewpoints on Yosemite Valley floor ⓘ |
| usedFor | rock climbing ⓘ |
| viewpointFor |
Yosemite Falls
ⓘ
Yosemite Valley floor ⓘ
linked to:
Yosemite Valley
|
| withinProtectedArea | Yosemite National Park ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Sentinel Rock Description of subject: Sentinel Rock is a prominent granite monolith in Yosemite National Park, known for its sheer cliffs and striking views from the Yosemite Valley floor.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sentinel Rock