Triple
T10899834
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail Needham Line |
E257407
|
entity |
| Predicate | servesCity |
P82
|
FINISHED |
| Object | Needham, Massachusetts |
E34096
|
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: Needham, Massachusetts | Statement: [MBTA Commuter Rail Needham Line, servesCity, Needham, Massachusetts]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Needham, Massachusetts Context triple: [MBTA Commuter Rail Needham Line, servesCity, Needham, Massachusetts]
-
A.
Needham
chosen
Needham is a suburban town in Norfolk County, Massachusetts, located southwest of downtown Boston and known for its residential character and strong public schools.
-
B.
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.
-
C.
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.
-
D.
Newton, Massachusetts
Newton, Massachusetts is a suburban city west of Boston known for its affluent residential neighborhoods, strong public schools, and village-style layout without a traditional downtown.
-
E.
Natick, Massachusetts
Natick, Massachusetts is a suburban town west of Boston known for its residential communities, shopping centers, and location along the Massachusetts Turnpike.
- 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_69d6aa8550c8819095508a2ed9acf3db |
completed | April 8, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69d761a2392c8190bc2c2359d63eff7a |
completed | April 9, 2026, 8:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd27ee6ff881909fb0d1590580c4e8 |
completed | May 8, 2026, 12:01 a.m. |
Created at: April 8, 2026, 9:21 p.m.