Triple

T3565264
Position Surface form Disambiguated ID Type / Status
Subject Riverside, Newton, Massachusetts E75431 entity
Predicate hasRailInfrastructure P19495 FINISHED
Object Riverside Yard
Riverside Yard is a rail yard facility in Newton, Massachusetts, serving as a storage and maintenance area for trains on the MBTA Green Line’s D branch.
 E369373 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: Riverside Yard | Statement: [Riverside, Newton, Massachusetts, hasRailInfrastructure, Riverside Yard]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Riverside Yard
Context triple: [Riverside, Newton, Massachusetts, hasRailInfrastructure, Riverside Yard]
  • A. Barstow Yard
    Barstow Yard is a major railroad classification and freight yard in Barstow, California, serving as a key hub for train operations in the region.
  • B. Sunnyside Yard
    Sunnyside Yard is a major rail yard in Queens, New York City, serving as a key hub for Amtrak, NJ Transit, and other commuter rail operations just east of Manhattan.
  • C. Coney Island Yard
    Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
  • D. Northumberland Park Depot
    Northumberland Park Depot is a major London Underground maintenance and stabling facility serving trains on the Victoria line.
  • E. Wellington Yard
    Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
  • 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: Riverside Yard
Triple: [Riverside, Newton, Massachusetts, hasRailInfrastructure, Riverside Yard]
Generated description
Riverside Yard is a rail yard facility in Newton, Massachusetts, serving as a storage and maintenance area for trains on the MBTA Green Line’s D branch.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Riverside Yard
Target entity description: Riverside Yard is a rail yard facility in Newton, Massachusetts, serving as a storage and maintenance area for trains on the MBTA Green Line’s D branch.
  • A. Barstow Yard
    Barstow Yard is a major railroad classification and freight yard in Barstow, California, serving as a key hub for train operations in the region.
  • B. Sunnyside Yard
    Sunnyside Yard is a major rail yard in Queens, New York City, serving as a key hub for Amtrak, NJ Transit, and other commuter rail operations just east of Manhattan.
  • C. Coney Island Yard
    Coney Island Yard is one of the largest New York City Subway maintenance and storage facilities, serving multiple lines in Brooklyn.
  • D. Northumberland Park Depot
    Northumberland Park Depot is a major London Underground maintenance and stabling facility serving trains on the Victoria line.
  • E. Wellington Yard
    Wellington Yard is a railway yard associated with Wellington station, used for storing, organizing, and managing trains and rolling stock.
  • 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_69ad85d512708190829c8b2d3a2ccfb8 completed March 8, 2026, 2:21 p.m.
NER Named-entity recognition batch_69adc0a8f6288190928479f5bea32245 completed March 8, 2026, 6:32 p.m.
NED1 Entity disambiguation (via context triple) batch_69b3bbacbb1081908fc57168a8fc3ade completed March 13, 2026, 7:24 a.m.
NEDg Description generation batch_69b3bf78d6a881908d5bcc4ae50a76e5 completed March 13, 2026, 7:40 a.m.
NED2 Entity disambiguation (via description) batch_69b3f5adac0481908b9053585c317be0 completed March 13, 2026, 11:31 a.m.
Created at: March 8, 2026, 3:21 p.m.