Triple
T1178216
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line |
E25076
|
entity |
| Predicate | hasBranch |
P35
|
FINISHED |
| Object |
Union Square Branch
The Union Square Branch is a segment of Boston's MBTA Green Line light rail system that extends service to the Union Square area of Somerville.
|
E138636
|
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: Union Square Branch | Statement: [MBTA Green Line, hasBranch, Union Square Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Square Branch Context triple: [MBTA Green Line, hasBranch, Union Square Branch]
-
A.
Mid-Manhattan Library
The Mid-Manhattan Library is a major circulating branch of the New York Public Library system in Manhattan, known for its extensive general-interest collections and public services.
-
B.
Jefferson Market Library
Jefferson Market Library is a historic former courthouse in New York City's Greenwich Village that now serves as a public branch of the New York Public Library.
-
C.
Brooklyn Public Library (Central Library)
Brooklyn Public Library’s Central Library is the flagship branch and main headquarters of the Brooklyn Public Library system, known for its landmark Art Deco building and extensive collections and services.
-
D.
Brooklyn Public Library branches
Brooklyn Public Library branches are neighborhood library facilities in Brooklyn, New York, that provide free access to books, digital resources, educational programs, and community services.
-
E.
Yonkers Public Library
Yonkers Public Library is the main public library system serving the city of Yonkers, New York, providing community access to books, digital resources, and educational programs.
- 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: Union Square Branch Triple: [MBTA Green Line, hasBranch, Union Square Branch]
Generated description
The Union Square Branch is a segment of Boston's MBTA Green Line light rail system that extends service to the Union Square area of Somerville.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Union Square Branch Target entity description: The Union Square Branch is a segment of Boston's MBTA Green Line light rail system that extends service to the Union Square area of Somerville.
-
A.
Mid-Manhattan Library
The Mid-Manhattan Library is a major circulating branch of the New York Public Library system in Manhattan, known for its extensive general-interest collections and public services.
-
B.
Jefferson Market Library
Jefferson Market Library is a historic former courthouse in New York City's Greenwich Village that now serves as a public branch of the New York Public Library.
-
C.
Brooklyn Public Library (Central Library)
Brooklyn Public Library’s Central Library is the flagship branch and main headquarters of the Brooklyn Public Library system, known for its landmark Art Deco building and extensive collections and services.
-
D.
Brooklyn Public Library branches
Brooklyn Public Library branches are neighborhood library facilities in Brooklyn, New York, that provide free access to books, digital resources, educational programs, and community services.
-
E.
Yonkers Public Library
Yonkers Public Library is the main public library system serving the city of Yonkers, New York, providing community access to books, digital resources, and educational programs.
- 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_69a4bd10ccc481908d5bcef648aab3c1 |
completed | March 1, 2026, 10:26 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac7f3443588190af6c06383e904e7d |
completed | March 7, 2026, 7:40 p.m. |
| NEDg | Description generation | batch_69ac7fba00f0819086a0fffa090c5809 |
completed | March 7, 2026, 7:42 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac807ead9c819088f7195aec87a538 |
completed | March 7, 2026, 7:46 p.m. |
Created at: March 1, 2026, 7:45 p.m.