Triple

T11313627
Position Surface form Disambiguated ID Type / Status
Subject MBTA Commuter Rail Providence/Stoughton Line E267904 entity
Predicate hasStop P17789 FINISHED
Object Canton Center station
Canton Center station is a commuter rail stop in Canton, Massachusetts, served by the MBTA’s Providence/Stoughton Line.
 E926911 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: Canton Center station | Statement: [MBTA Commuter Rail Providence/Stoughton Line, hasStop, Canton Center station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Canton Center station
Context triple: [MBTA Commuter Rail Providence/Stoughton Line, hasStop, Canton Center station]
  • A. Mercantile Center Station
    Mercantile Center Station is a commuter rail stop in Fort Worth, Texas, on the TEXRail line connecting downtown Fort Worth to Dallas/Fort Worth International Airport.
  • B. Davenport Avenue station
    Davenport Avenue station is a stop on New Jersey's Newark Light Rail system serving local passengers in Newark.
  • C. North Avenue station
    North Avenue station is a transit stop on Baltimore's Light Rail system serving the North Avenue corridor in Baltimore, Maryland.
  • D. North Avenue station
    North Avenue station is a major elevated rail station in Quezon City, Philippines, serving as a key commuter hub on Manila’s MRT Line 3.
  • E. Centre Avenue station
    Centre Avenue station is a commuter rail stop on the Long Island Rail Road serving the Long Beach Branch in Nassau County, New York.
  • 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: Canton Center station
Triple: [MBTA Commuter Rail Providence/Stoughton Line, hasStop, Canton Center station]
Generated description
Canton Center station is a commuter rail stop in Canton, Massachusetts, served by the MBTA’s Providence/Stoughton Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Canton Center station
Target entity description: Canton Center station is a commuter rail stop in Canton, Massachusetts, served by the MBTA’s Providence/Stoughton Line.
  • A. Mercantile Center Station
    Mercantile Center Station is a commuter rail stop in Fort Worth, Texas, on the TEXRail line connecting downtown Fort Worth to Dallas/Fort Worth International Airport.
  • B. Davenport Avenue station
    Davenport Avenue station is a stop on New Jersey's Newark Light Rail system serving local passengers in Newark.
  • C. North Avenue station
    North Avenue station is a transit stop on Baltimore's Light Rail system serving the North Avenue corridor in Baltimore, Maryland.
  • D. North Avenue station
    North Avenue station is a major elevated rail station in Quezon City, Philippines, serving as a key commuter hub on Manila’s MRT Line 3.
  • E. Centre Avenue station
    Centre Avenue station is a commuter rail stop on the Long Island Rail Road serving the Long Beach Branch in Nassau County, New York.
  • 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_69d6aaca5c24819083db46a30d86cb34 completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7e9c2c7b081909af8acebc8aa93aa completed April 9, 2026, 6:02 p.m.
NED1 Entity disambiguation (via context triple) batch_69e5e8b19b1c8190bc9147a9fc73e35b completed April 20, 2026, 8:49 a.m.
NEDg Description generation batch_69e5f1557e9c8190b53ce391793b2c7f completed April 20, 2026, 9:26 a.m.
NED2 Entity disambiguation (via description) batch_69e5f863bf7c81908969ed0a5b99f032 completed April 20, 2026, 9:56 a.m.
Created at: April 8, 2026, 9:32 p.m.