Triple

T22963885
Position Surface form Disambiguated ID Type / Status
Subject MBTA Commuter Rail at South Station E570980 entity
Predicate connects P390 FINISHED
Object Fall River, Massachusetts (via South Coast Rail) — 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: Fall River, Massachusetts (via South Coast Rail) | Statement: [MBTA Commuter Rail at South Station, connects, Fall River, Massachusetts (via South Coast Rail)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Fall River, Massachusetts (via South Coast Rail)
Context triple: [MBTA Commuter Rail at South Station, connects, Fall River, Massachusetts (via South Coast Rail)]
  • A. Fall River station
    Fall River station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail station serving the city of Fall River, Massachusetts.
  • B. Fall River, Massachusetts chosen
    Fall River, Massachusetts is a historic industrial city in southeastern Massachusetts known for its former textile mills, deep Portuguese-American roots, and the infamous Lizzie Borden murder case.
  • C. Boston, Massachusetts (via Downeaster)
    Boston, Massachusetts (via Downeaster) refers to the city of Boston as a destination on Amtrak’s Downeaster passenger rail line connecting it with communities in New Hampshire and Maine.
  • D. Newburyport station
    Newburyport station is a Massachusetts Bay Transportation Authority commuter rail station in Newburyport, Massachusetts, serving as the northern endpoint of the Newburyport/Rockport Line.
  • E. Attleboro station
    Attleboro station is a Massachusetts Bay Transportation Authority commuter rail station in Attleboro, Massachusetts, serving regional rail passengers between Boston and Providence.
  • 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_69e245b212a88190b5259caf51606084 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f181f66fbc8190a4a7b73d17537132 completed April 29, 2026, 3:58 a.m.
Created at: April 17, 2026, 3:47 p.m.