Triple
T10191582
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Muni Metro J Church line |
E238047
|
entity |
| Predicate | usesInfrastructure |
P6820
|
FINISHED |
| Object | Twin Peaks Tunnel |
E374328
|
NE FINISHED |
How this triple was built (2 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: Twin Peaks Tunnel | Statement: [Muni Metro J Church line, usesInfrastructure, Twin Peaks Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Twin Peaks Tunnel Context triple: [Muni Metro J Church line, usesInfrastructure, Twin Peaks Tunnel]
-
A.
Twin Peaks Tunnel
chosen
The Twin Peaks Tunnel is a historic light rail tunnel in San Francisco that carries Muni Metro trains between downtown and the western neighborhoods beneath Twin Peaks.
-
B.
Summit Tunnel
Summit Tunnel is a historic railroad tunnel driven through the Sierra Nevada in California, notable for its challenging 19th-century construction as part of the First Transcontinental Railroad.
-
C.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
D.
Sunset Tunnel
Sunset Tunnel is a rail tunnel in San Francisco that carries Muni Metro light rail trains beneath the hilly terrain between the Duboce Triangle and Inner Sunset neighborhoods.
-
E.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ca84de1b208190bf17bb305b002605 |
completed | March 30, 2026, 2:12 p.m. |
| NER | Named-entity recognition | batch_69cded7eb1148190a2d175163685e233 |
completed | April 2, 2026, 4:15 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d317c0c22881909ed388721e80bafd |
completed | April 6, 2026, 2:17 a.m. |
Created at: March 30, 2026, 9:13 p.m.