Triple
T20844263
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Massachusetts regional transit authorities system |
E513179
|
entity |
| Predicate | overseenBy |
P86
|
FINISHED |
| Object | MassDOT Rail and Transit Division |
—
|
NE NERFINISHED |
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: MassDOT Rail and Transit Division | Statement: [Massachusetts regional transit authorities system, overseenBy, MassDOT Rail and Transit Division]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MassDOT Rail and Transit Division Context triple: [Massachusetts regional transit authorities system, overseenBy, MassDOT Rail and Transit Division]
-
A.
MassDOT Rail and Transit Division
chosen
The MassDOT Rail and Transit Division is the branch of Massachusetts’ state transportation agency responsible for planning, funding, and overseeing passenger rail and public transit services across the Commonwealth.
-
B.
MBTA
The MBTA (Massachusetts Bay Transportation Authority) is the public transit agency that operates subway, bus, commuter rail, and ferry services in the Greater Boston area.
-
C.
MBTA
MBTA is a landmark U.S. federal law enacted in 1918 that protects migratory bird species by prohibiting their unauthorized capture, killing, or trade.
-
D.
MassDOT Office of Transportation Planning
The MassDOT Office of Transportation Planning is a division of the Massachusetts Department of Transportation responsible for statewide transportation planning, policy development, and coordination across modes such as highways, transit, rail, and bicycle and pedestrian networks.
-
E.
MBTA Fiscal and Management Control Board
The MBTA Fiscal and Management Control Board was a special oversight body created by Massachusetts to stabilize, reform, and improve the finances and operations of the Massachusetts Bay Transportation Authority.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0b4f4898081908209e58edb8f9c45 |
completed | April 16, 2026, 10:07 a.m. |
| NER | Named-entity recognition | batch_69e6c34deef88190992b959b83bc59b1 |
completed | April 21, 2026, 12:22 a.m. |
Created at: April 16, 2026, 12:43 p.m.