Triple

T16315284
Position Surface form Disambiguated ID Type / Status
Subject Pennsylvania trolley gauge E396156 entity
Predicate historicallyUsedBy P2834 FINISHED
Object Reading streetcar system
The Reading streetcar system was an electric urban trolley network that once served the city of Reading, Pennsylvania, providing streetcar transit throughout the region before its eventual replacement by buses and automobiles.
 E1205291 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: Reading streetcar system | Statement: [Pennsylvania trolley gauge, historicallyUsedBy, Reading streetcar system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Reading streetcar system
Context triple: [Pennsylvania trolley gauge, historicallyUsedBy, Reading streetcar system]
  • A. United Streetcar
    United Streetcar was an American company that manufactured modern streetcars for urban transit systems in the United States.
  • B. Dallas Streetcar
    Dallas Streetcar is a modern, free-to-ride streetcar line in Dallas, Texas, providing light rail-style transit between downtown and the Oak Cliff area.
  • C. College Street streetcar
    The College Street streetcar is a Toronto Transit Commission streetcar route that runs along College Street, serving key downtown neighborhoods including the Discovery District.
  • D. Cincinnati Bell Connector streetcar
    The Cincinnati Bell Connector streetcar is a modern electric streetcar line that provides downtown and Over-the-Rhine circulation in Cincinnati, Ohio.
  • E. Seattle Streetcar
    The Seattle Streetcar is a modern electric streetcar system providing urban transit service along key corridors in Seattle, Washington.
  • 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: Reading streetcar system
Triple: [Pennsylvania trolley gauge, historicallyUsedBy, Reading streetcar system]
Generated description
The Reading streetcar system was an electric urban trolley network that once served the city of Reading, Pennsylvania, providing streetcar transit throughout the region before its eventual replacement by buses and automobiles.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Reading streetcar system
Target entity description: The Reading streetcar system was an electric urban trolley network that once served the city of Reading, Pennsylvania, providing streetcar transit throughout the region before its eventual replacement by buses and automobiles.
  • A. United Streetcar
    United Streetcar was an American company that manufactured modern streetcars for urban transit systems in the United States.
  • B. Dallas Streetcar
    Dallas Streetcar is a modern, free-to-ride streetcar line in Dallas, Texas, providing light rail-style transit between downtown and the Oak Cliff area.
  • C. College Street streetcar
    The College Street streetcar is a Toronto Transit Commission streetcar route that runs along College Street, serving key downtown neighborhoods including the Discovery District.
  • D. Cincinnati Bell Connector streetcar
    The Cincinnati Bell Connector streetcar is a modern electric streetcar line that provides downtown and Over-the-Rhine circulation in Cincinnati, Ohio.
  • E. Seattle Streetcar
    The Seattle Streetcar is a modern electric streetcar system providing urban transit service along key corridors in Seattle, Washington.
  • 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_69d87f255b788190a400eba031dd85d8 completed April 10, 2026, 4:40 a.m.
NER Named-entity recognition batch_69e288de57cc81908cec93309347c385 completed April 17, 2026, 7:24 p.m.
NED1 Entity disambiguation (via context triple) batch_6a001fa88e8c8190b0423b60389896dc completed May 10, 2026, 6:03 a.m.
NEDg Description generation batch_6a002067aa708190bc2583c95ab133a4 completed May 10, 2026, 6:06 a.m.
NED2 Entity disambiguation (via description) batch_6a00214a2a908190a11388a63de1f7af completed May 10, 2026, 6:10 a.m.
Created at: April 10, 2026, 5:06 a.m.