Triple

T2121484
Position Surface form Disambiguated ID Type / Status
Subject CTrail Hartford Line E43932 entity
Predicate usesStation P726 FINISHED
Object West Hartford station
West Hartford station is a planned commuter rail stop in West Hartford, Connecticut, that will serve passengers on the CTrail Hartford Line.
 E247553 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: West Hartford station | Statement: [CTrail Hartford Line, usesStation, West Hartford station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: West Hartford station
Context triple: [CTrail Hartford Line, usesStation, West Hartford station]
  • A. Meriden station
    Meriden station is a passenger rail station in Meriden, Connecticut, serving CTrail Hartford Line and Amtrak trains along the New Haven–Springfield corridor.
  • B. Windsor Locks station
    Windsor Locks station is a passenger rail stop in Windsor Locks, Connecticut, serving CTrail’s Hartford Line and Amtrak trains along the Hartford–Springfield corridor.
  • C. Stamford station
    Stamford station is a major commuter rail hub in Stamford, Connecticut, serving as one of the busiest stops on the Metro-North Railroad and a key gateway between New York City and New England.
  • D. Hartford Union Station
    Hartford Union Station is the primary historic rail and bus transportation hub in downtown Hartford, Connecticut, serving Amtrak, CTrail, and regional transit services.
  • E. Andover station
    Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
  • 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: West Hartford station
Triple: [CTrail Hartford Line, usesStation, West Hartford station]
Generated description
West Hartford station is a planned commuter rail stop in West Hartford, Connecticut, that will serve passengers on the CTrail Hartford Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: West Hartford station
Target entity description: West Hartford station is a planned commuter rail stop in West Hartford, Connecticut, that will serve passengers on the CTrail Hartford Line.
  • A. Meriden station
    Meriden station is a passenger rail station in Meriden, Connecticut, serving CTrail Hartford Line and Amtrak trains along the New Haven–Springfield corridor.
  • B. Windsor Locks station
    Windsor Locks station is a passenger rail stop in Windsor Locks, Connecticut, serving CTrail’s Hartford Line and Amtrak trains along the Hartford–Springfield corridor.
  • C. Stamford station
    Stamford station is a major commuter rail hub in Stamford, Connecticut, serving as one of the busiest stops on the Metro-North Railroad and a key gateway between New York City and New England.
  • D. Hartford Union Station
    Hartford Union Station is the primary historic rail and bus transportation hub in downtown Hartford, Connecticut, serving Amtrak, CTrail, and regional transit services.
  • E. Andover station
    Andover station is a commuter rail stop in Andover, Massachusetts, served by the MBTA on its route between Boston and Haverhill.
  • 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_69a88717cfe48190b7ecdd68c824848a completed March 4, 2026, 7:25 p.m.
NER Named-entity recognition batch_69abbb51e8088190a1aeafee4e8dff63 completed March 7, 2026, 5:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69ae6aec3694819090d0e7cf02944aa3 completed March 9, 2026, 6:38 a.m.
NEDg Description generation batch_69ae6c1bc7e4819081b7eedf5391e733 completed March 9, 2026, 6:43 a.m.
NED2 Entity disambiguation (via description) batch_69ae6c88f64c81908586682d1fd8cd26 completed March 9, 2026, 6:45 a.m.
Created at: March 4, 2026, 7:44 p.m.