Triple
T17596830
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Hetch Hetchy Power System |
E428593
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
Mountain Tunnel
Mountain Tunnel is a major water conveyance tunnel within California’s Hetch Hetchy Power System that transports Sierra Nevada water toward the San Francisco Bay Area.
|
E1278185
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Mountain Tunnel | Statement: [Hetch Hetchy Power System, hasPart, Mountain Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mountain Tunnel Context triple: [Hetch Hetchy Power System, hasPart, Mountain Tunnel]
-
A.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
C.
Supai Tunnel
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.
-
D.
Homer Tunnel
Homer Tunnel is a road tunnel in New Zealand’s Fiordland that provides critical access through the mountains on the route to Milford Sound.
-
E.
Galmihorn Tunnel
The Galmihorn Tunnel is a Swiss road tunnel on the A9 motorway, carrying traffic through the mountainous terrain of the Valais region.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Mountain Tunnel Triple: [Hetch Hetchy Power System, hasPart, Mountain Tunnel]
Generated description
Mountain Tunnel is a major water conveyance tunnel within California’s Hetch Hetchy Power System that transports Sierra Nevada water toward the San Francisco Bay Area.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mountain Tunnel Target entity description: Mountain Tunnel is a major water conveyance tunnel within California’s Hetch Hetchy Power System that transports Sierra Nevada water toward the San Francisco Bay Area.
-
A.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
C.
Supai Tunnel
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.
-
D.
Homer Tunnel
Homer Tunnel is a road tunnel in New Zealand’s Fiordland that provides critical access through the mountains on the route to Milford Sound.
-
E.
Galmihorn Tunnel
The Galmihorn Tunnel is a Swiss road tunnel on the A9 motorway, carrying traffic through the mountainous terrain of the Valais region.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69d889e1030481909950e140c63255b9 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e469ec335c8190abcaff700cfff23b |
completed | April 19, 2026, 5:36 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a01e817f7248190b7166fbd28393b00 |
completed | May 11, 2026, 2:30 p.m. |
| NEDg | Description generation | batch_6a01f002f630819088bc0b7506ceb4d7 |
completed | May 11, 2026, 3:04 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a01f0ebf9e4819091d1b59964c6a275 |
completed | May 11, 2026, 3:08 p.m. |
Created at: April 10, 2026, 5:51 a.m.