Triple
T9285538
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Northwestern Pacific Railroad |
E223383
|
entity |
| Predicate | hasTunnel |
P21069
|
FINISHED |
| Object |
Tunnel No. 27 (Eel River Canyon)
Tunnel No. 27 (Eel River Canyon) is a railroad tunnel along California’s remote Eel River Canyon that once formed part of the Northwestern Pacific Railroad’s main line through the rugged North Coast region.
|
E789375
|
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: Tunnel No. 27 (Eel River Canyon) | Statement: [Northwestern Pacific Railroad, hasTunnel, Tunnel No. 27 (Eel River Canyon)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Tunnel No. 27 (Eel River Canyon) Context triple: [Northwestern Pacific Railroad, hasTunnel, Tunnel No. 27 (Eel River Canyon)]
-
A.
Tunnel No. 2
Tunnel No. 2 is one of New York City’s major water distribution tunnels that helps convey drinking water from upstate reservoirs to the city’s boroughs.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
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.
Tunnel No. 1
Tunnel No. 1 is a major water-supply tunnel that forms part of New York City’s underground distribution system.
-
E.
Anton Anderson Memorial Tunnel
The Anton Anderson Memorial Tunnel is a combined rail and highway tunnel in Alaska that provides the only road access to the town of Whittier through the Chugach Mountains.
- 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: Tunnel No. 27 (Eel River Canyon) Triple: [Northwestern Pacific Railroad, hasTunnel, Tunnel No. 27 (Eel River Canyon)]
Generated description
Tunnel No. 27 (Eel River Canyon) is a railroad tunnel along California’s remote Eel River Canyon that once formed part of the Northwestern Pacific Railroad’s main line through the rugged North Coast region.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Tunnel No. 27 (Eel River Canyon) Target entity description: Tunnel No. 27 (Eel River Canyon) is a railroad tunnel along California’s remote Eel River Canyon that once formed part of the Northwestern Pacific Railroad’s main line through the rugged North Coast region.
-
A.
Tunnel No. 2
Tunnel No. 2 is one of New York City’s major water distribution tunnels that helps convey drinking water from upstate reservoirs to the city’s boroughs.
-
B.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
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.
Tunnel No. 1
Tunnel No. 1 is a major water-supply tunnel that forms part of New York City’s underground distribution system.
-
E.
Anton Anderson Memorial Tunnel
The Anton Anderson Memorial Tunnel is a combined rail and highway tunnel in Alaska that provides the only road access to the town of Whittier through the Chugach Mountains.
- 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_69ca8422ddf881908a3f8f876c9f53aa |
completed | March 30, 2026, 2:09 p.m. |
| NER | Named-entity recognition | batch_69cd081fe8cc8190b6c1b481c7129689 |
completed | April 1, 2026, 11:57 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d0b21d8f1081909b2493151fde4a5f |
completed | April 4, 2026, 6:39 a.m. |
| NEDg | Description generation | batch_69d0b3234d088190a8ed13b4d4772fb5 |
completed | April 4, 2026, 6:43 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69d0b3bcd5548190ba1af3d0fa72780a |
completed | April 4, 2026, 6:46 a.m. |
Created at: March 30, 2026, 7:35 p.m.