Triple
T89968
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA bus network |
E1808
|
entity |
| Predicate | hasComponent |
P35
|
FINISHED |
| Object |
MBTA bus route 66
MBTA bus route 66 is a heavily used crosstown bus line in the Boston area that connects Harvard Square in Cambridge with Dudley/Nubian Square in Roxbury via Allston and Brookline.
|
E34286
|
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: MBTA bus route 66 | Statement: [MBTA bus network, hasComponent, MBTA bus route 66]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA bus route 66 Context triple: [MBTA bus network, hasComponent, MBTA bus route 66]
-
A.
MBTA bus route 1
MBTA bus route 1 is a heavily used Boston-area bus line that runs between Harvard Square in Cambridge and Dudley/Nubian Square in Roxbury, serving major corridors like Massachusetts Avenue.
-
B.
MBTA bus network
The MBTA bus network is the system of public bus routes serving Cambridge and the greater Boston area as part of the Massachusetts Bay Transportation Authority’s regional transit services.
-
C.
MBTA Blue Line
The MBTA Blue Line is a rapid transit line in the Boston metropolitan area that runs primarily along the city’s northeastern corridor, connecting downtown Boston with East Boston, Logan Airport, and Revere.
-
D.
MBTA Orange Line
The MBTA Orange Line is a rapid transit line in the Boston metropolitan area that runs roughly north–south, connecting neighborhoods such as Jamaica Plain, Downtown Boston, and Malden.
-
E.
MBTA Green Line
The MBTA Green Line is a light rail service in Boston, Massachusetts, known as one of the oldest subway lines in the United States and serving key neighborhoods, universities, and cultural destinations across the city.
- 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: MBTA bus route 66 Triple: [MBTA bus network, hasComponent, MBTA bus route 66]
Generated description
MBTA bus route 66 is a heavily used crosstown bus line in the Boston area that connects Harvard Square in Cambridge with Dudley/Nubian Square in Roxbury via Allston and Brookline.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA bus route 66 Target entity description: MBTA bus route 66 is a heavily used crosstown bus line in the Boston area that connects Harvard Square in Cambridge with Dudley/Nubian Square in Roxbury via Allston and Brookline.
-
A.
MBTA bus route 1
chosen
MBTA bus route 1 is a heavily used Boston-area bus line that runs between Harvard Square in Cambridge and Dudley/Nubian Square in Roxbury, serving major corridors like Massachusetts Avenue.
-
B.
MBTA bus network
The MBTA bus network is the system of public bus routes serving Cambridge and the greater Boston area as part of the Massachusetts Bay Transportation Authority’s regional transit services.
-
C.
MBTA Blue Line
The MBTA Blue Line is a rapid transit line in the Boston metropolitan area that runs primarily along the city’s northeastern corridor, connecting downtown Boston with East Boston, Logan Airport, and Revere.
-
D.
MBTA Orange Line
The MBTA Orange Line is a rapid transit line in the Boston metropolitan area that runs roughly north–south, connecting neighborhoods such as Jamaica Plain, Downtown Boston, and Malden.
-
E.
MBTA Green Line
The MBTA Green Line is a light rail service in Boston, Massachusetts, known as one of the oldest subway lines in the United States and serving key neighborhoods, universities, and cultural destinations across the city.
- F. None of above.
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_69a389a6c2b4819094e37228814942ad |
completed | March 1, 2026, 12:34 a.m. |
| NEDg | Description generation | batch_69a38a393ad48190a434adddaa680f5a |
completed | March 1, 2026, 12:37 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a38a8c01e48190ab8f66f17363fa65 |
completed | March 1, 2026, 12:38 a.m. |
Created at: Feb. 28, 2026, 2:07 a.m.