Triple

T4355886
Position Surface form Disambiguated ID Type / Status
Subject Rockport Branch E98146 entity
Predicate startPoint P389 FINISHED
Object Beverly station
Beverly station is a Massachusetts Bay Transportation Authority commuter rail station in Beverly, Massachusetts, serving as a key junction and terminal point for several North Shore rail lines.
E439421 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: Beverly station | Statement: [Rockport Branch, startPoint, Beverly station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Beverly station
Context triple: [Rockport Branch, startPoint, Beverly station]
  • A. Beverly Farms station
    Beverly Farms station is a commuter rail stop in the Beverly Farms neighborhood of Beverly, Massachusetts, served by the MBTA's Newburyport/Rockport Line.
  • B. Savin Hill station
    Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
  • C. Belmont station
    Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
  • D. Belmont station
    Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
  • E. Copley station
    Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
  • 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: Beverly station
Triple: [Rockport Branch, startPoint, Beverly station]
Generated description
Beverly station is a Massachusetts Bay Transportation Authority commuter rail station in Beverly, Massachusetts, serving as a key junction and terminal point for several North Shore rail lines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Beverly station
Target entity description: Beverly station is a Massachusetts Bay Transportation Authority commuter rail station in Beverly, Massachusetts, serving as a key junction and terminal point for several North Shore rail lines.
  • A. Beverly Farms station
    Beverly Farms station is a commuter rail stop in the Beverly Farms neighborhood of Beverly, Massachusetts, served by the MBTA's Newburyport/Rockport Line.
  • B. Savin Hill station
    Savin Hill station is a rapid transit stop on the Massachusetts Bay Transportation Authority's Red Line serving the Savin Hill neighborhood of Dorchester in Boston, Massachusetts.
  • C. Belmont station
    Belmont station is a commuter rail stop in Downers Grove, Illinois, served by Metra’s BNSF Railway Line connecting the suburb to downtown Chicago.
  • D. Belmont station
    Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
  • E. Copley station
    Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
  • 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_69b3454965f881908c41190bb22f0e4b completed March 12, 2026, 10:59 p.m.
NER Named-entity recognition batch_69b351c5773481908446d84897e7a533 completed March 12, 2026, 11:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69b613504f3481908e9093700c25dd5f completed March 15, 2026, 2:02 a.m.
NEDg Description generation batch_69b614d063b48190abbb0b8b6d420c8f completed March 15, 2026, 2:09 a.m.
NED2 Entity disambiguation (via description) batch_69b6155a57c08190bbf2e88f95cede16 completed March 15, 2026, 2:11 a.m.
Created at: March 12, 2026, 11:16 p.m.