Triple
T15112274
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Greenbush station |
E360941
|
entity |
| Predicate | hasZone |
P6793
|
FINISHED |
| Object |
MBTA Commuter Rail Zone 6
MBTA Commuter Rail Zone 6 is a fare zone in the Greater Boston regional rail system used to determine ticket prices for trips between outer suburban stations and central Boston.
|
E1140978
|
NE FINISHED |
How this triple was built (4 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 Commuter Rail Zone 6 | Statement: [Greenbush station, hasZone, MBTA Commuter Rail Zone 6]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA Commuter Rail Zone 6 Context triple: [Greenbush station, hasZone, MBTA Commuter Rail Zone 6]
-
A.
MBTA Commuter Rail Zone 1A
MBTA Commuter Rail Zone 1A is the innermost fare zone of the Boston-area commuter rail system, covering central city stations with the lowest commuter rail fares.
-
B.
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.
-
C.
MBTA Zone 1
MBTA Zone 1 is a commuter rail fare zone in the Massachusetts Bay Transportation Authority system that covers near-suburban stations just outside central Boston.
-
D.
MBTA Commuter Rail Greenbush Line
The MBTA Commuter Rail Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route connecting Boston’s South Station with coastal South Shore communities, including towns such as Hingham, Cohasset, and Scituate.
-
E.
MBTA Fairmount Line
The MBTA Fairmount Line is a commuter rail service in Boston, Massachusetts, connecting several neighborhoods in the city’s southern corridor to downtown.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: MBTA Commuter Rail Zone 6 Triple: [Greenbush station, hasZone, MBTA Commuter Rail Zone 6]
Generated description
MBTA Commuter Rail Zone 6 is a fare zone in the Greater Boston regional rail system used to determine ticket prices for trips between outer suburban stations and central Boston.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA Commuter Rail Zone 6 Target entity description: MBTA Commuter Rail Zone 6 is a fare zone in the Greater Boston regional rail system used to determine ticket prices for trips between outer suburban stations and central Boston.
-
A.
MBTA Commuter Rail Zone 1A
MBTA Commuter Rail Zone 1A is the innermost fare zone of the Boston-area commuter rail system, covering central city stations with the lowest commuter rail fares.
-
B.
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.
-
C.
MBTA Zone 1
MBTA Zone 1 is a commuter rail fare zone in the Massachusetts Bay Transportation Authority system that covers near-suburban stations just outside central Boston.
-
D.
MBTA Commuter Rail Greenbush Line
The MBTA Commuter Rail Greenbush Line is a Massachusetts Bay Transportation Authority commuter rail route connecting Boston’s South Station with coastal South Shore communities, including towns such as Hingham, Cohasset, and Scituate.
-
E.
MBTA Fairmount Line
The MBTA Fairmount Line is a commuter rail service in Boston, Massachusetts, connecting several neighborhoods in the city’s southern corridor to downtown.
- F. None of above. chosen
Provenance (5 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_69d85a0491ec8190830960be8fafb994 |
completed | April 10, 2026, 2:01 a.m. |
| NER | Named-entity recognition | batch_69e0058d786c8190937c6819255c01bd |
completed | April 15, 2026, 9:39 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fec87ce9808190a862ac5839272711 |
completed | May 9, 2026, 5:39 a.m. |
| NEDg | Description generation | batch_69fec93f7c9c8190b9d1722180517d7c |
completed | May 9, 2026, 5:42 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69fec9c518a08190b0ae7adad43a7f2c |
completed | May 9, 2026, 5:44 a.m. |
Created at: April 10, 2026, 3:05 a.m.