Triple
T20905664
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chesterfield Canal |
E514790
|
entity |
| Predicate | hasPart |
P35
|
FINISHED |
| Object |
Norwood Tunnel
Norwood Tunnel is a historic canal tunnel in England that once formed a key underground section of the Chesterfield Canal, notable for its length and engineering significance.
|
E1456929
|
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: Norwood Tunnel | Statement: [Chesterfield Canal, hasPart, Norwood Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Norwood Tunnel Context triple: [Chesterfield Canal, hasPart, Norwood Tunnel]
-
A.
Beacon Hill tunnel
Beacon Hill tunnel is an underground light rail tunnel in Seattle, Washington, carrying Sound Transit’s Link light rail beneath the Beacon Hill neighborhood.
-
B.
Enlow Tunnel
Enlow Tunnel is a historic railroad tunnel in Pennsylvania that now serves as part of the multi-use Montour Trail for hikers and cyclists.
-
C.
Summit Tunnel
Summit Tunnel is a historic railway tunnel in northern England, renowned as one of the earliest and longest major railway tunnels built during the early Victorian era.
-
D.
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.
-
E.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
- 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: Norwood Tunnel Triple: [Chesterfield Canal, hasPart, Norwood Tunnel]
Generated description
Norwood Tunnel is a historic canal tunnel in England that once formed a key underground section of the Chesterfield Canal, notable for its length and engineering significance.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Norwood Tunnel Target entity description: Norwood Tunnel is a historic canal tunnel in England that once formed a key underground section of the Chesterfield Canal, notable for its length and engineering significance.
-
A.
Beacon Hill tunnel
Beacon Hill tunnel is an underground light rail tunnel in Seattle, Washington, carrying Sound Transit’s Link light rail beneath the Beacon Hill neighborhood.
-
B.
Enlow Tunnel
Enlow Tunnel is a historic railroad tunnel in Pennsylvania that now serves as part of the multi-use Montour Trail for hikers and cyclists.
-
C.
Summit Tunnel
Summit Tunnel is a historic railway tunnel in northern England, renowned as one of the earliest and longest major railway tunnels built during the early Victorian era.
-
D.
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.
-
E.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
- 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_69e0b4f8a1108190bce3d31331290ced |
completed | April 16, 2026, 10:07 a.m. |
| NER | Named-entity recognition | batch_69e6e9001a8c81909fa1004b5977d04f |
completed | April 21, 2026, 3:03 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a0918d86e0c8190b72886c8eefeee7f |
completed | May 17, 2026, 1:24 a.m. |
| NEDg | Description generation | batch_6a091aa1c728819086154d9975acb981 |
completed | May 17, 2026, 1:32 a.m. |
| NED2 | Entity disambiguation (via description) | batch_6a091b17eec481908b0da1432856efbf |
completed | May 17, 2026, 1:34 a.m. |
Created at: April 16, 2026, 12:47 p.m.