Triple

T18729241
Position Surface form Disambiguated ID Type / Status
Subject Forest Hills station E457986 entity
Predicate fareZone P844 FINISHED
Object MBTA Commuter Rail Zone 1A — 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: MBTA Commuter Rail Zone 1A | Statement: [Forest Hills station, fareZone, MBTA Commuter Rail Zone 1A]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: MBTA Commuter Rail Zone 1A
Context triple: [Forest Hills station, fareZone, MBTA Commuter Rail Zone 1A]
  • A. 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.
  • B. 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.
  • 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 Zone 4
    MBTA Zone 4 is a commuter rail fare zone in the Massachusetts Bay Transportation Authority system that covers suburban stations located a moderate distance from downtown Boston, such as Natick Center.
  • E. 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.
  • 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_69d8d393ba9c8190a8b03b04ddbb0a09 completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e56d7660488190b4f70db963d05ef6 completed April 20, 2026, 12:04 a.m.
Created at: April 10, 2026, 11:50 a.m.