Triple
T1127935
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Park Street |
E24761
|
entity |
| Predicate | hasAdjacentStationOnGreenLine |
P25284
|
FINISHED |
| Object |
Boylston
Boylston is an MBTA Green Line subway station located near Boston Common in downtown Boston, Massachusetts.
|
E232560
|
NE FINISHED |
How this triple was built (5 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: Boylston | Statement: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boylston Context triple: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
-
A.
Boston Common
Boston Common is a historic central public park in downtown Boston and the oldest city park in the United States.
-
B.
Allston, Massachusetts
Allston, Massachusetts is a vibrant Boston neighborhood known for its large student population, diverse immigrant communities, and growing innovation and arts scene.
-
C.
Brookline
Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
-
D.
Cambridgeport
Cambridgeport is a residential and commercial neighborhood in Cambridge, Massachusetts, located along the Charles River and known for its mix of historic housing, local businesses, and proximity to MIT.
-
E.
Newtonville
Newtonville is a residential and commercial village within the city of Newton, Massachusetts, known for its commuter rail access and small-town center.
- 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: Boylston Triple: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
Generated description
Boylston is an MBTA Green Line subway station located near Boston Common in downtown Boston, Massachusetts.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Boylston Target entity description: Boylston is an MBTA Green Line subway station located near Boston Common in downtown Boston, Massachusetts.
-
A.
Boston Common
Boston Common is a historic central public park in downtown Boston and the oldest city park in the United States.
-
B.
Allston, Massachusetts
Allston, Massachusetts is a vibrant Boston neighborhood known for its large student population, diverse immigrant communities, and growing innovation and arts scene.
-
C.
Brookline
Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
-
D.
Cambridgeport
Cambridgeport is a residential and commercial neighborhood in Cambridge, Massachusetts, located along the Charles River and known for its mix of historic housing, local businesses, and proximity to MIT.
-
E.
Newtonville
Newtonville is a residential and commercial village within the city of Newton, Massachusetts, known for its commuter rail access and small-town center.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasAdjacentStationOnGreenLine Context triple: [Park Street, hasAdjacentStationOnGreenLine, Boylston]
-
A.
hasAdjacentBusStation
Indicates that one location has a bus station situated directly next to or very near it.
-
B.
openedAsRedLineStation
Indicates that a station began operation specifically as part of the Red Line when it first opened.
-
C.
hasNearbyStateLine
Indicates that one location is situated close to the boundary line of a neighboring state.
-
D.
hasMetroLine
Indicates that a location or area is served by, or connected to, a specific metro (subway) line.
-
E.
adjacentStationOnChuoLine
Indicates that two stations are directly next to each other as consecutive stops on the Chuo railway line.
- F. None of above. chosen
Provenance (7 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_69a4940712c88190aa244f3fc6070a65 |
completed | March 1, 2026, 7:31 p.m. |
| NER | Named-entity recognition | batch_69a4bc4bc21881909dcfe628f59f3e8c |
completed | March 1, 2026, 10:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ae26ce527c8190988fd9a97ad06895 |
completed | March 9, 2026, 1:47 a.m. |
| NEDg | Description generation | batch_69ae2763b4b08190b733e8342a52f75e |
completed | March 9, 2026, 1:50 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ae27d10bf08190a14fa1ca906646f8 |
completed | March 9, 2026, 1:52 a.m. |
| PD | Predicate disambiguation | batch_69a4bb48de2081909a0dce005b1c9df1 |
completed | March 1, 2026, 10:18 p.m. |
| PDg | Predicate description generation | batch_69a4bc47fce48190825d3a877251f789 |
completed | March 1, 2026, 10:23 p.m. |
Created at: March 1, 2026, 7:44 p.m.