Triple
T89984
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA bus network |
E1808
|
entity |
| Predicate | primaryHub |
P394
|
FINISHED |
| Object |
Alewife station
Alewife station is a major Boston-area transit hub that serves as the northern terminus of the MBTA Red Line and a key connection point for numerous bus routes.
|
E35959
|
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: Alewife station | Statement: [MBTA bus network, primaryHub, Alewife station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Alewife station Context triple: [MBTA bus network, primaryHub, Alewife station]
-
A.
Edison station
Edison station is a New Jersey Transit commuter rail stop on the Northeast Corridor Line serving the township of Edison, New Jersey.
-
B.
Akard station
Akard station is a Dallas Area Rapid Transit (DART) light rail station serving the central business district of downtown Dallas, Texas.
-
C.
Ayer station
Ayer station is a commuter rail stop in Ayer, Massachusetts that serves as a local transit hub on the MBTA Fitchburg Line.
-
D.
Brunswick station
Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
-
E.
Vermont/Sunset station
Vermont/Sunset station is an underground Los Angeles Metro Rail station in East Hollywood serving the B Line.
- 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: Alewife station Triple: [MBTA bus network, primaryHub, Alewife station]
Generated description
Alewife station is a major Boston-area transit hub that serves as the northern terminus of the MBTA Red Line and a key connection point for numerous bus routes.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Alewife station Target entity description: Alewife station is a major Boston-area transit hub that serves as the northern terminus of the MBTA Red Line and a key connection point for numerous bus routes.
-
A.
Edison station
Edison station is a New Jersey Transit commuter rail stop on the Northeast Corridor Line serving the township of Edison, New Jersey.
-
B.
Akard station
Akard station is a Dallas Area Rapid Transit (DART) light rail station serving the central business district of downtown Dallas, Texas.
-
C.
Ayer station
Ayer station is a commuter rail stop in Ayer, Massachusetts that serves as a local transit hub on the MBTA Fitchburg Line.
-
D.
Brunswick station
Brunswick station is a passenger rail station in Brunswick, Maryland, serving as the western endpoint of MARC's Brunswick Line commuter service.
-
E.
Vermont/Sunset station
Vermont/Sunset station is an underground Los Angeles Metro Rail station in East Hollywood serving the B Line.
- 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_69a24d1a97dc819094e6c021fe9b05a7 |
completed | Feb. 28, 2026, 2:04 a.m. |
| NER | Named-entity recognition | batch_69a383e3575c8190932dcdc25503d06e |
completed | March 1, 2026, 12:10 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a39148b1d0819089f46f9d287a23b3 |
completed | March 1, 2026, 1:07 a.m. |
| NEDg | Description generation | batch_69a3932aa7d48190a598d9c0615a72b9 |
completed | March 1, 2026, 1:15 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a393794150819092f44b23ba95c449 |
completed | March 1, 2026, 1:16 a.m. |
Created at: Feb. 28, 2026, 2:07 a.m.