Supai Tunnel
E684979
Supai Tunnel is a man-made passageway carved into the canyon wall along the North Kaibab Trail in Grand Canyon National Park, serving as a notable landmark and turnaround point for many hikers.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Supai Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7734175 — 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: Supai Tunnel Context triple: [North Kaibab Trail, passes, Supai Tunnel]
-
A.
Wawona Tunnel
Wawona Tunnel is a historic highway tunnel in Yosemite National Park that serves as the dramatic western gateway to the famous Tunnel View overlook of Yosemite Valley.
-
B.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
C.
Sela Tunnel
Sela Tunnel is a high-altitude road tunnel in Arunachal Pradesh, India, built to provide all-weather connectivity to the Tawang region near the India-China border.
-
D.
Salang Tunnel
The Salang Tunnel is a strategic highway tunnel in Afghanistan that passes through the Hindu Kush mountains, providing a vital north–south transport link between Kabul and the northern provinces.
-
E.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
- 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: Supai Tunnel Target entity description: Supai Tunnel is a man-made passageway carved into the canyon wall along the North Kaibab Trail in Grand Canyon National Park, serving as a notable landmark and turnaround point for many hikers.
-
A.
Wawona Tunnel
Wawona Tunnel is a historic highway tunnel in Yosemite National Park that serves as the dramatic western gateway to the famous Tunnel View overlook of Yosemite Valley.
-
B.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
C.
Sela Tunnel
Sela Tunnel is a high-altitude road tunnel in Arunachal Pradesh, India, built to provide all-weather connectivity to the Tawang region near the India-China border.
-
D.
Salang Tunnel
The Salang Tunnel is a strategic highway tunnel in Afghanistan that passes through the Hindu Kush mountains, providing a vital north–south transport link between Kabul and the northern provinces.
-
E.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
hiking landmark
ⓘ
man-made passageway ⓘ tunnel ⓘ |
| accessedBy | North Kaibab Trail from North Rim NERFINISHED ⓘ |
| carvedInto | canyon wall ⓘ |
| category |
Grand Canyon National Park infrastructure
ⓘ
Hiking trail landmarks in Arizona ⓘ Tunnels in Arizona ⓘ |
| constructionType | rock excavation ⓘ |
| environment | semi-arid canyon environment ⓘ |
| governedBy | Grand Canyon National Park regulations ⓘ |
| hasFeature |
cooler temperatures than exposed trail sections
ⓘ
railings along trail near tunnel ⓘ rock-cut passageway ⓘ shade for hikers ⓘ steep approach trail ⓘ |
| hasNameOrigin | named after Supai, associated with Havasupai people and region ⓘ |
| locatedIn |
Arizona
NERFINISHED
ⓘ
Coconino County, Arizona NERFINISHED ⓘ Grand Canyon National Park NERFINISHED ⓘ North Kaibab Trail NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| locatedOn | north side of Grand Canyon ⓘ |
| maintainedBy | U.S. National Park Service NERFINISHED ⓘ |
| near | North Rim of Grand Canyon NERFINISHED ⓘ |
| onRouteTo |
Colorado River via North Kaibab Trail
NERFINISHED
ⓘ
Roaring Springs NERFINISHED ⓘ |
| partOf |
Grand Canyon backcountry trail system
NERFINISHED
ⓘ
North Kaibab Trail corridor NERFINISHED ⓘ |
| popularWith |
backpackers
ⓘ
day hikers ⓘ mule riders ⓘ |
| safetyRole | common turnaround point to limit heat and exertion ⓘ |
| subjectTo | seasonal weather conditions ⓘ |
| trailDistanceFrom |
Coconino Overlook
NERFINISHED
ⓘ
North Kaibab Trailhead on North Rim NERFINISHED ⓘ |
| usedAs |
rest point
ⓘ
turnaround point for day hikers ⓘ |
| usedFor |
hiking
ⓘ
mule traffic ⓘ |
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: Supai Tunnel Description of subject: Supai Tunnel is a man-made passageway carved into the canyon wall along the North Kaibab Trail in Grand Canyon National Park, serving as a notable landmark and turnaround point for many hikers.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.