Triple
T1178226
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line |
E25076
|
entity |
| Predicate | centralHub |
P2958
|
FINISHED |
| Object |
Copley
Copley is a major MBTA subway station in Boston’s Back Bay neighborhood, serving as a key transfer and access point for nearby landmarks such as Copley Square and the Boston Public Library.
|
E134784
|
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: Copley | Statement: [MBTA Green Line, centralHub, Copley]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Copley Context triple: [MBTA Green Line, centralHub, Copley]
-
A.
Peabody
Peabody is a suburban city in northeastern Massachusetts known for its location on the North Shore and its historical ties to the leather industry.
-
B.
Savin Hill
Savin Hill is a neighborhood in Dorchester, Boston, known for its residential character, historic homes, and proximity to a namesake MBTA rapid transit station.
-
C.
Beacon Hill
Beacon Hill is a historic, affluent Boston neighborhood known for its Federal-style rowhouses, narrow gas-lit streets, and role as a center of state government and early American history.
-
D.
Beacon Hill
Beacon Hill is a residential neighborhood in southeast Seattle known for its diverse community, hilltop views, and proximity to downtown via light rail.
-
E.
Dorchester
Dorchester is one of the earliest English settlements in New England, now a historic neighborhood of Boston, Massachusetts.
- 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: Copley Triple: [MBTA Green Line, centralHub, Copley]
Generated description
Copley is a major MBTA subway station in Boston’s Back Bay neighborhood, serving as a key transfer and access point for nearby landmarks such as Copley Square and the Boston Public Library.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Copley Target entity description: Copley is a major MBTA subway station in Boston’s Back Bay neighborhood, serving as a key transfer and access point for nearby landmarks such as Copley Square and the Boston Public Library.
-
A.
Peabody
Peabody is a suburban city in northeastern Massachusetts known for its location on the North Shore and its historical ties to the leather industry.
-
B.
Savin Hill
Savin Hill is a neighborhood in Dorchester, Boston, known for its residential character, historic homes, and proximity to a namesake MBTA rapid transit station.
-
C.
Beacon Hill
Beacon Hill is a historic, affluent Boston neighborhood known for its Federal-style rowhouses, narrow gas-lit streets, and role as a center of state government and early American history.
-
D.
Beacon Hill
Beacon Hill is a residential neighborhood in southeast Seattle known for its diverse community, hilltop views, and proximity to downtown via light rail.
-
E.
Dorchester
Dorchester is one of the earliest English settlements in New England, now a historic neighborhood of Boston, Massachusetts.
- 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_69a494267b4c819088c97a59182bf56a |
completed | March 1, 2026, 7:31 p.m. |
| NER | Named-entity recognition | batch_69a4bf15423481909cb3e661e58d3d94 |
completed | March 1, 2026, 10:35 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac6f1cab308190bdb5ae1e01d83b61 |
completed | March 7, 2026, 6:31 p.m. |
| NEDg | Description generation | batch_69ac6ff4c62881908cf88169e99d2983 |
completed | March 7, 2026, 6:35 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac704cdaf08190b77b0b9345537d84 |
completed | March 7, 2026, 6:37 p.m. |
Created at: March 1, 2026, 7:45 p.m.