Triple
T3443998
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Commuter Rail Kingston Line |
E72630
|
entity |
| Predicate | dispatchingAuthority |
P16162
|
FINISHED |
| Object | MBTA or its contracted operator |
E2866
|
NE FINISHED |
How this triple was built (3 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: MBTA or its contracted operator | Statement: [MBTA Commuter Rail Kingston Line, dispatchingAuthority, MBTA or its contracted operator]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA or its contracted operator Context triple: [MBTA Commuter Rail Kingston Line, dispatchingAuthority, MBTA or its contracted operator]
-
A.
MassDOT Rail and Transit Division
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
chosen
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.
MBTA paratransit service
MBTA paratransit service is a door-to-door, shared-ride transportation program providing accessible transit for people with disabilities who are unable to use standard MBTA buses, subways, or trains.
-
E.
MBTA Commuter Rail network
The MBTA Commuter Rail network is a regional passenger rail system serving Greater Boston and surrounding communities in Massachusetts and parts of Rhode Island.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: dispatchingAuthority Context triple: [MBTA Commuter Rail Kingston Line, dispatchingAuthority, MBTA or its contracted operator]
-
A.
allocationAuthority
Indicates that an entity has the power or right to decide how resources, tasks, or responsibilities are distributed among others.
-
B.
designationAuthority
Indicates the entity that has the official power or responsibility to assign, grant, or confer a particular designation to another entity.
-
C.
designatesAuthority
Indicates that one entity formally assigns or confers decision-making power or control over something to another entity.
-
D.
operatingAuthority
chosen
Indicates that an entity has the official power, permission, or jurisdiction to operate, manage, or control another entity or activity.
-
E.
administeredBy
Indicates that an action, service, or process is carried out, managed, or overseen by a specified agent or authority.
- F. None of above.
Provenance (4 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_69ad85b05c848190b7a28ceec2bd7b74 |
completed | March 8, 2026, 2:20 p.m. |
| NER | Named-entity recognition | batch_69adba2a605c8190a0eafdf6f25b1e38 |
completed | March 8, 2026, 6:04 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b360da33e081908630e3f29ea01530 |
completed | March 13, 2026, 12:56 a.m. |
| PD | Predicate disambiguation | batch_69adae0255b48190a9069f7871c7a012 |
completed | March 8, 2026, 5:12 p.m. |
Created at: March 8, 2026, 3:16 p.m.