Triple
T23098281
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | St. Marys Street station |
E575954
|
entity |
| Predicate | isPartOfNetwork |
P840
|
FINISHED |
| Object | MBTA rapid transit and light rail network |
—
|
NE NERFINISHED |
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 rapid transit and light rail network | Statement: [St. Marys Street station, isPartOfNetwork, MBTA rapid transit and light rail network]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA rapid transit and light rail network Context triple: [St. Marys Street station, isPartOfNetwork, MBTA rapid transit and light rail network]
-
A.
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.
-
B.
MBTA park-and-ride network
The MBTA park-and-ride network is a system of parking facilities at transit stations that allows commuters to park their vehicles and transfer to Boston-area public transportation services.
-
C.
MBTA rapid transit zone
The MBTA rapid transit zone is the fare and service area designation used by Boston’s subway and light rail system to organize routes, stops, and pricing within the Massachusetts Bay Transportation Authority network.
-
D.
Massachusetts regional transit authorities system
The Massachusetts regional transit authorities system is a network of locally governed public transportation agencies that provide bus and paratransit services across regions outside the core MBTA service area in the state.
-
E.
Philadelphia commuter rail network
The Philadelphia commuter rail network is a regional passenger rail system serving the greater Philadelphia area, primarily operated by SEPTA and connecting the city with its surrounding suburbs.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA rapid transit and light rail network Target entity description: The MBTA rapid transit and light rail network is the Greater Boston area’s urban rail system, encompassing subway and surface trolley lines that provide high-frequency public transportation across the city and surrounding communities.
-
A.
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.
-
B.
MBTA park-and-ride network
The MBTA park-and-ride network is a system of parking facilities at transit stations that allows commuters to park their vehicles and transfer to Boston-area public transportation services.
-
C.
MBTA rapid transit zone
The MBTA rapid transit zone is the fare and service area designation used by Boston’s subway and light rail system to organize routes, stops, and pricing within the Massachusetts Bay Transportation Authority network.
-
D.
Massachusetts regional transit authorities system
The Massachusetts regional transit authorities system is a network of locally governed public transportation agencies that provide bus and paratransit services across regions outside the core MBTA service area in the state.
-
E.
Philadelphia commuter rail network
The Philadelphia commuter rail network is a regional passenger rail system serving the greater Philadelphia area, primarily operated by SEPTA and connecting the city with its surrounding suburbs.
- F. None of above. chosen
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_69e245c060b48190a9bd61a47a16db17 |
completed | April 17, 2026, 2:37 p.m. |
| NER | Named-entity recognition | batch_69f18de71a088190b91918e6c4ea6e97 |
completed | April 29, 2026, 4:49 a.m. |
Created at: April 17, 2026, 3:57 p.m.