Triple
T141772
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA |
E2866
|
entity |
| Predicate | areaServed |
P82
|
FINISHED |
| Object | Massachusetts Bay area |
E34561
|
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: Massachusetts Bay area | Statement: [MBTA, areaServed, Massachusetts Bay area]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Massachusetts Bay area Context triple: [MBTA, areaServed, Massachusetts Bay area]
-
A.
Greater Boston
Greater Boston is the metropolitan region centered on the city of Boston, Massachusetts, encompassing numerous surrounding cities and towns and serving as a major hub for education, technology, and culture in New England.
-
B.
Merrimack Valley
Merrimack Valley is a region in northeastern Massachusetts and southern New Hampshire centered around the Merrimack River, known for its historic mill cities and industrial heritage.
-
C.
Southeastern Massachusetts
Southeastern Massachusetts is a region of the U.S. state of Massachusetts that encompasses communities south and east of Boston, including parts of Plymouth and Bristol counties and serving as a gateway to Cape Cod.
-
D.
eastern Massachusetts
chosen
Eastern Massachusetts is the densely populated, coastal portion of the state that includes the Greater Boston area and many of its major cultural, economic, and educational centers.
-
E.
Boston, Massachusetts
Boston, Massachusetts is a historic New England city and the capital of Massachusetts, known for its pivotal role in the American Revolution, prestigious universities, and cultural and economic influence.
- 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_69a2521e35c08190b28e5c9f1e3c9b59 |
completed | Feb. 28, 2026, 2:25 a.m. |
| NER | Named-entity recognition | batch_69a257c9cab8819095e8d9fa32c1fbc6 |
completed | Feb. 28, 2026, 2:49 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a399a12344819097028715c166ecb7 |
completed | March 1, 2026, 1:42 a.m. |
Created at: Feb. 28, 2026, 2:31 a.m.