Triple
T1695831
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Beaconsfield station |
E36654
|
entity |
| Predicate | fareZone |
P844
|
FINISHED |
| Object |
MBTA rapid transit zone
The MBTA rapid transit zone is the inner fare area of Greater Boston’s public transit system where subway and certain commuter rail services operate under a unified, lower-cost fare structure.
|
E170289
|
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 rapid transit zone | Statement: [Beaconsfield station, fareZone, MBTA rapid transit zone]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MBTA rapid transit zone Context triple: [Beaconsfield station, fareZone, MBTA rapid transit zone]
-
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 commuter rail terminals
MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
-
C.
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.
-
D.
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.
-
E.
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.
- 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 rapid transit zone Triple: [Beaconsfield station, fareZone, MBTA rapid transit zone]
Generated description
The MBTA rapid transit zone is the inner fare area of Greater Boston’s public transit system where subway and certain commuter rail services operate under a unified, lower-cost fare structure.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MBTA rapid transit zone Target entity description: The MBTA rapid transit zone is the inner fare area of Greater Boston’s public transit system where subway and certain commuter rail services operate under a unified, lower-cost fare structure.
-
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 commuter rail terminals
MBTA commuter rail terminals are major passenger rail hubs in the Boston area that serve as endpoints and transfer points for regional trains connecting the city with its surrounding suburbs and communities.
-
C.
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.
-
D.
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.
-
E.
MBTA Commuter Rail Zone 1A
chosen
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.
- F. None of above.
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_69a886163dec8190859c514232a37a05 |
completed | March 4, 2026, 7:20 p.m. |
| NER | Named-entity recognition | batch_69aa62b645a081909dafdf7a32f2a389 |
completed | March 6, 2026, 5:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b224711a908190b4be9dfcd7737edd |
completed | March 12, 2026, 2:26 a.m. |
| NEDg | Description generation | batch_69b22522980c81909f1a1b6510da8489 |
completed | March 12, 2026, 2:29 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b225c6c2d88190adb381023e0c3219 |
completed | March 12, 2026, 2:32 a.m. |
Created at: March 4, 2026, 7:30 p.m.