Triple
T11133572
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail Old Colony Lines |
E263349
|
entity |
| Predicate | historicRouteBasis |
P75432
|
FINISHED |
| Object |
Greenbush Branch
The Greenbush Branch is a historic former railroad line in Massachusetts that later served as the basis for the modern MBTA Greenbush commuter rail service to Boston’s South Shore.
|
E907886
|
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: Greenbush Branch | Statement: [MBTA Commuter Rail Old Colony Lines, historicRouteBasis, Greenbush Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Greenbush Branch Context triple: [MBTA Commuter Rail Old Colony Lines, historicRouteBasis, Greenbush Branch]
-
A.
Glasson Branch
Glasson Branch is a short navigable arm of the Lancaster Canal in Lancashire, England, linking the main canal to the port village of Glasson Dock.
-
B.
Newton Branch
Newton Branch is a local public library facility that is part of the Central Rappahannock Regional Library system.
-
C.
Cooper Branch
Cooper Branch is a local public library facility that serves as one of the community branches within the Central Rappahannock Regional Library system.
-
D.
Gulf Branch
Gulf Branch is a small stream in Arlington, Virginia, that flows through parkland and natural areas before emptying into the Potomac River.
-
E.
Thread Creek
Thread Creek is a smaller stream in Michigan that feeds into the Flint River as part of its watershed system.
- 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: Greenbush Branch Triple: [MBTA Commuter Rail Old Colony Lines, historicRouteBasis, Greenbush Branch]
Generated description
The Greenbush Branch is a historic former railroad line in Massachusetts that later served as the basis for the modern MBTA Greenbush commuter rail service to Boston’s South Shore.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Greenbush Branch Target entity description: The Greenbush Branch is a historic former railroad line in Massachusetts that later served as the basis for the modern MBTA Greenbush commuter rail service to Boston’s South Shore.
-
A.
Glasson Branch
Glasson Branch is a short navigable arm of the Lancaster Canal in Lancashire, England, linking the main canal to the port village of Glasson Dock.
-
B.
Newton Branch
Newton Branch is a local public library facility that is part of the Central Rappahannock Regional Library system.
-
C.
Cooper Branch
Cooper Branch is a local public library facility that serves as one of the community branches within the Central Rappahannock Regional Library system.
-
D.
Gulf Branch
Gulf Branch is a small stream in Arlington, Virginia, that flows through parkland and natural areas before emptying into the Potomac River.
-
E.
Thread Creek
Thread Creek is a smaller stream in Michigan that feeds into the Flint River as part of its watershed system.
- 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_69d6aa9c0ba08190bbd19c217489b755 |
completed | April 8, 2026, 7:21 p.m. |
| NER | Named-entity recognition | batch_69d7e8347a248190837e8c26f25f553a |
completed | April 9, 2026, 5:56 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69e441f00d7c8190a8fe8e0c1169e6b0 |
completed | April 19, 2026, 2:46 a.m. |
| NEDg | Description generation | batch_69e44c09163481909d6a469b1e50b6ff |
completed | April 19, 2026, 3:29 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69e4519f4d408190be9863c72006ecad |
completed | April 19, 2026, 3:53 a.m. |
Created at: April 8, 2026, 9:28 p.m.