Triple

T1661982
Position Surface form Disambiguated ID Type / Status
Subject Chester, Pennsylvania E35928 entity
Predicate hasRailStation P726 FINISHED
Object Chester Transportation Center
Chester Transportation Center is a major multimodal transit hub in Chester, Pennsylvania, serving regional rail, bus, and other public transportation services.
 E188758 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: Chester Transportation Center | Statement: [Chester, Pennsylvania, hasRailStation, Chester Transportation Center]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chester Transportation Center
Context triple: [Chester, Pennsylvania, hasRailStation, Chester Transportation Center]
  • A. Darby Transportation Center
    Darby Transportation Center is a public transit hub in Darby, Pennsylvania, serving as a key interchange point for SEPTA trolley and bus services.
  • B. Aurora Transportation Center
    Aurora Transportation Center is a major commuter rail and bus hub in Aurora, Illinois, serving as the western terminus for Metra’s BNSF Railway Line and a key regional transit center.
  • C. Trenton Transit Center
    Trenton Transit Center is a major intermodal transportation hub in Trenton, New Jersey, serving NJ Transit, Amtrak, SEPTA, and local bus connections.
  • D. Olney Transportation Center
    Olney Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key northern terminal and transfer point for SEPTA subway, bus, and regional services.
  • E. Durham Station Transportation Center
    Durham Station Transportation Center is a major multimodal transit hub in downtown Durham, North Carolina, serving local and regional bus routes and connecting travelers to the broader Triangle area.
  • 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: Chester Transportation Center
Triple: [Chester, Pennsylvania, hasRailStation, Chester Transportation Center]
Generated description
Chester Transportation Center is a major multimodal transit hub in Chester, Pennsylvania, serving regional rail, bus, and other public transportation services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Chester Transportation Center
Target entity description: Chester Transportation Center is a major multimodal transit hub in Chester, Pennsylvania, serving regional rail, bus, and other public transportation services.
  • A. Darby Transportation Center
    Darby Transportation Center is a public transit hub in Darby, Pennsylvania, serving as a key interchange point for SEPTA trolley and bus services.
  • B. Aurora Transportation Center
    Aurora Transportation Center is a major commuter rail and bus hub in Aurora, Illinois, serving as the western terminus for Metra’s BNSF Railway Line and a key regional transit center.
  • C. Trenton Transit Center
    Trenton Transit Center is a major intermodal transportation hub in Trenton, New Jersey, serving NJ Transit, Amtrak, SEPTA, and local bus connections.
  • D. Olney Transportation Center
    Olney Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key northern terminal and transfer point for SEPTA subway, bus, and regional services.
  • E. Durham Station Transportation Center
    Durham Station Transportation Center is a major multimodal transit hub in downtown Durham, North Carolina, serving local and regional bus routes and connecting travelers to the broader Triangle area.
  • 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_69a88606aa808190aa0b421b4271f220 completed March 4, 2026, 7:20 p.m.
NER Named-entity recognition batch_69a90ab3bd7081908d15d772b10aebbe completed March 5, 2026, 4:46 a.m.
NED1 Entity disambiguation (via context triple) batch_69ad682ab8a08190bdb33d79d5083029 completed March 8, 2026, 12:14 p.m.
NEDg Description generation batch_69ad6be91e1c8190b3db2ba019e77ee3 completed March 8, 2026, 12:30 p.m.
NED2 Entity disambiguation (via description) batch_69ad6d161bd08190a7087d61f2d3a45e completed March 8, 2026, 12:35 p.m.
Created at: March 4, 2026, 7:29 p.m.