Triple
T17741853
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Washington Park station |
E442877
|
entity |
| Predicate | tunnelSection |
P3120
|
FINISHED |
| Object | Robertson Tunnel |
E99274
|
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: Robertson Tunnel | Statement: [Washington Park station, tunnelSection, Robertson Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Robertson Tunnel Context triple: [Washington Park station, tunnelSection, Robertson Tunnel]
-
A.
Robertson Tunnel
chosen
Robertson Tunnel is a major light rail tunnel in Portland, Oregon, carrying MAX trains through the West Hills between downtown and the city’s western suburbs.
-
B.
Mount Macdonald Tunnel
Mount Macdonald Tunnel is a major railway tunnel in British Columbia, Canada, that carries Canadian Pacific Railway trains through the Selkirk Mountains as part of a key transcontinental route.
-
C.
Colinton Tunnel
Colinton Tunnel is a historic former railway tunnel in the Colinton area of Edinburgh, Scotland, now renowned for its large-scale mural artworks and community-led regeneration as a public art space.
-
D.
Bopeep Tunnel
Bopeep Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the coastal cliffs near St Leonards.
-
E.
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.
- 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_69d8b9ed3a2081909b2ec0d4dd2f4c37 |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e47acd780c8190b1308ef0aca00f5c |
completed | April 19, 2026, 6:48 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0242fd4a008190b199a7a557ee24a4 |
completed | May 11, 2026, 8:58 p.m. |
Created at: April 10, 2026, 10:09 a.m.