Triple

T16315294
Position Surface form Disambiguated ID Type / Status
Subject Pennsylvania trolley gauge E396156 entity
Predicate historicallyUsedBy P2834 FINISHED
Object Erie streetcar system
The Erie streetcar system was a historic electric trolley network that provided urban public transportation in Erie, Pennsylvania during the late 19th and early 20th centuries.
 E1214161 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: Erie streetcar system | Statement: [Pennsylvania trolley gauge, historicallyUsedBy, Erie streetcar system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Erie streetcar system
Context triple: [Pennsylvania trolley gauge, historicallyUsedBy, Erie streetcar system]
  • A. Pittsburgh streetcar system
    The Pittsburgh streetcar system was an extensive urban and suburban electric tram network that once served as a primary mode of public transportation in and around Pittsburgh, Pennsylvania.
  • B. Wilkes-Barre streetcar system
    The Wilkes-Barre streetcar system was an early 20th-century electric urban and interurban trolley network serving Wilkes-Barre, Pennsylvania, and its surrounding communities.
  • C. Scranton streetcar system
    The Scranton streetcar system was an early 20th-century electric trolley network that provided urban and interurban public transit in and around Scranton, Pennsylvania.
  • D. Allentown streetcar system
    The Allentown streetcar system was an early 20th-century electric trolley network that served the city of Allentown, Pennsylvania, and its surroundings as a primary form of urban and interurban public transportation.
  • E. Easton streetcar system
    The Easton streetcar system was a historic electric trolley network that once provided urban and interurban public transit service in and around Easton, Pennsylvania.
  • 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: Erie streetcar system
Triple: [Pennsylvania trolley gauge, historicallyUsedBy, Erie streetcar system]
Generated description
The Erie streetcar system was a historic electric trolley network that provided urban public transportation in Erie, Pennsylvania during the late 19th and early 20th centuries.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Erie streetcar system
Target entity description: The Erie streetcar system was a historic electric trolley network that provided urban public transportation in Erie, Pennsylvania during the late 19th and early 20th centuries.
  • A. Pittsburgh streetcar system
    The Pittsburgh streetcar system was an extensive urban and suburban electric tram network that once served as a primary mode of public transportation in and around Pittsburgh, Pennsylvania.
  • B. Wilkes-Barre streetcar system
    The Wilkes-Barre streetcar system was an early 20th-century electric urban and interurban trolley network serving Wilkes-Barre, Pennsylvania, and its surrounding communities.
  • C. Scranton streetcar system
    The Scranton streetcar system was an early 20th-century electric trolley network that provided urban and interurban public transit in and around Scranton, Pennsylvania.
  • D. Allentown streetcar system
    The Allentown streetcar system was an early 20th-century electric trolley network that served the city of Allentown, Pennsylvania, and its surroundings as a primary form of urban and interurban public transportation.
  • E. Easton streetcar system
    The Easton streetcar system was a historic electric trolley network that once provided urban and interurban public transit service in and around Easton, Pennsylvania.
  • 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_6a00457324948190b803b715cea8b86d completed May 10, 2026, 8:44 a.m.
NEDg Description generation batch_6a0046b4f6c88190b9cf4cb669b1b08a completed May 10, 2026, 8:49 a.m.
NED2 Entity disambiguation (via description) batch_6a004a9d01a48190ad59b260980323cd completed May 10, 2026, 9:06 a.m.
Created at: April 10, 2026, 5:06 a.m.