Triple
T3502
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Fitchburg Line |
E65
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
South Acton
South Acton is a commuter rail station in Acton, Massachusetts, serving as a key stop on the MBTA’s Fitchburg Line between Boston and communities to the northwest.
|
E825
|
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: South Acton | Statement: [MBTA Fitchburg Line, hasStation, South Acton]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: South Acton Context triple: [MBTA Fitchburg Line, hasStation, South Acton]
-
A.
Oxford Road campus
Oxford Road campus is the principal site of the University of Manchester, housing many of its academic buildings, libraries, and student facilities along Oxford Road in Manchester, England.
-
B.
Cambridge, England
Cambridge, England is a historic university city on the River Cam renowned for the University of Cambridge and its longstanding contributions to education, science, and culture.
-
C.
Longwood Medical Area
Longwood Medical Area is a major medical and academic district in Boston known for its concentration of world-renowned hospitals, research institutions, and health sciences schools.
-
D.
Chocolate City
Chocolate City is a popular nickname for Washington, D.C., highlighting its historically large and influential African American population and culture.
-
E.
Lynn
Lynn is a coastal city in northeastern Massachusetts, known as one of the larger urban centers in the Greater Boston metropolitan area.
- 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: South Acton Triple: [MBTA Fitchburg Line, hasStation, South Acton]
Generated description
South Acton is a commuter rail station in Acton, Massachusetts, serving as a key stop on the MBTA’s Fitchburg Line between Boston and communities to the northwest.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: South Acton Target entity description: South Acton is a commuter rail station in Acton, Massachusetts, serving as a key stop on the MBTA’s Fitchburg Line between Boston and communities to the northwest.
-
A.
Oxford Road campus
Oxford Road campus is the principal site of the University of Manchester, housing many of its academic buildings, libraries, and student facilities along Oxford Road in Manchester, England.
-
B.
Cambridge, England
Cambridge, England is a historic university city on the River Cam renowned for the University of Cambridge and its longstanding contributions to education, science, and culture.
-
C.
Longwood Medical Area
Longwood Medical Area is a major medical and academic district in Boston known for its concentration of world-renowned hospitals, research institutions, and health sciences schools.
-
D.
Chocolate City
Chocolate City is a popular nickname for Washington, D.C., highlighting its historically large and influential African American population and culture.
-
E.
Lynn
Lynn is a coastal city in northeastern Massachusetts, known as one of the larger urban centers in the Greater Boston metropolitan area.
- 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_69a238d6b47881909e68288aed2fd858 |
completed | Feb. 28, 2026, 12:37 a.m. |
| NER | Named-entity recognition | batch_69a23ff0650c8190bea8724de0343e58 |
completed | Feb. 28, 2026, 1:08 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a243c57fe481909b6c1b8f41757f96 |
completed | Feb. 28, 2026, 1:24 a.m. |
| NEDg | Description generation | batch_69a2463a71188190a7252fae85f68711 |
completed | Feb. 28, 2026, 1:34 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a246e74bfc8190ba3ea9818a55cc28 |
completed | Feb. 28, 2026, 1:37 a.m. |
Created at: Feb. 28, 2026, 12:40 a.m.