Triple
T269476
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Green Line D branch |
E5598
|
entity |
| Predicate | servesCity |
P82
|
FINISHED |
| Object | Brookline, Massachusetts |
E30911
|
NE FINISHED |
How this triple was built (2 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: Brookline, Massachusetts | Statement: [MBTA Green Line D branch, servesCity, Brookline, Massachusetts]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Brookline, Massachusetts Context triple: [MBTA Green Line D branch, servesCity, Brookline, Massachusetts]
-
A.
Brookline
chosen
Brookline is an affluent, historic suburban town directly bordering Boston, known for its tree-lined streets, excellent public schools, and vibrant residential neighborhoods.
-
B.
Medford, Massachusetts
Medford, Massachusetts is a historic city just northwest of Boston, known for being the home of Tufts University and for its role in early American colonial and industrial history.
-
C.
Peabody, Massachusetts
Peabody, Massachusetts is a historic North Shore city known for its leather industry heritage and as a residential and commercial hub north of Boston.
-
D.
Waltham, Massachusetts
Waltham, Massachusetts is a historic city just west of Boston known for its role in the American Industrial Revolution and as home to institutions like Brandeis University and Bentley University.
-
E.
Melrose, Massachusetts
Melrose, Massachusetts is a suburban city just north of Boston known for its historic residential neighborhoods, strong public schools, and convenient commuter access to the city.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69a25853594c8190b05ec3a586ec88bf |
completed | Feb. 28, 2026, 2:52 a.m. |
| NER | Named-entity recognition | batch_69a25db00ed48190be6f598807265356 |
completed | Feb. 28, 2026, 3:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b0555c43348190a99f6d11031417b3 |
completed | March 10, 2026, 5:31 p.m. |
Created at: Feb. 28, 2026, 2:57 a.m.