Triple
T3014461
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail Lowell Line |
E82302
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object | Medford |
E9996
|
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: Medford | Statement: [MBTA Commuter Rail Lowell Line, serves, Medford]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Medford Context triple: [MBTA Commuter Rail Lowell Line, serves, Medford]
-
A.
Medford
Medford is a city in southern Oregon that serves as a regional commercial and transportation hub in the Rogue Valley.
-
B.
Medford, Massachusetts
chosen
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.
Needham
Needham is a suburban town in Norfolk County, Massachusetts, located southwest of downtown Boston and known for its residential character and strong public schools.
-
D.
Acton
Acton is an inner suburb of Canberra, Australia, known for housing major national institutions such as the Australian National University and several key cultural and research facilities.
-
E.
Acton
Acton is a village and civil parish located in the county of Suffolk in eastern England.
- 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_69ad8b1eb53481908c39bbcd1ec104b2 |
completed | March 8, 2026, 2:43 p.m. |
| NER | Named-entity recognition | batch_69ad9a69e8148190a97507740c9d26a8 |
completed | March 8, 2026, 3:48 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b367e2fbb8819084e01920d2a37b80 |
completed | March 13, 2026, 1:26 a.m. |
Created at: March 8, 2026, 3 p.m.