Triple

T3123800
Position Surface form Disambiguated ID Type / Status
Subject Delaware County, Pennsylvania E65246 entity
Predicate servedBy P82 FINISHED
Object SEPTA trolley lines
SEPTA trolley lines are a network of light rail and streetcar routes in the Philadelphia region that provide local transit service between the city and nearby suburbs.
E1855 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: SEPTA trolley lines | Statement: [Delaware County, Pennsylvania, servedBy, SEPTA trolley lines]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: SEPTA trolley lines
Context triple: [Delaware County, Pennsylvania, servedBy, SEPTA trolley lines]
  • A. SEPTA Subway–Surface Trolley Lines
    The SEPTA Subway–Surface Trolley Lines are a network of light rail routes in Philadelphia that operate partly in subway tunnels and partly on city streets, connecting Center City with West Philadelphia and surrounding neighborhoods.
  • B. SEPTA trackless trolley routes
    SEPTA trackless trolley routes are electric bus lines in Philadelphia that operate using overhead wires instead of diesel engines, providing quieter and lower-emission transit service.
  • C. SEPTA Route 101 trolley
    The SEPTA Route 101 trolley is a suburban light rail line in the Philadelphia area that runs between the 69th Street Transportation Center and Media, Pennsylvania.
  • D. SEPTA Route 15 trolley
    The SEPTA Route 15 trolley is a historic Philadelphia streetcar line running along Girard Avenue, known for using restored PCC trolleys to provide local transit service.
  • E. SEPTA Broad Street Line
    The SEPTA Broad Street Line is a rapid transit subway line running primarily along Broad Street in Philadelphia, providing north–south service through the city’s central corridor.
  • 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: SEPTA trolley lines
Triple: [Delaware County, Pennsylvania, servedBy, SEPTA trolley lines]
Generated description
SEPTA trolley lines are a network of light rail and streetcar routes in the Philadelphia region that provide local transit service between the city and nearby suburbs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: SEPTA trolley lines
Target entity description: SEPTA trolley lines are a network of light rail and streetcar routes in the Philadelphia region that provide local transit service between the city and nearby suburbs.
  • A. SEPTA Subway–Surface Trolley Lines chosen
    The SEPTA Subway–Surface Trolley Lines are a network of light rail routes in Philadelphia that operate partly in subway tunnels and partly on city streets, connecting Center City with West Philadelphia and surrounding neighborhoods.
  • B. SEPTA trackless trolley routes
    SEPTA trackless trolley routes are electric bus lines in Philadelphia that operate using overhead wires instead of diesel engines, providing quieter and lower-emission transit service.
  • C. SEPTA Route 101 trolley
    The SEPTA Route 101 trolley is a suburban light rail line in the Philadelphia area that runs between the 69th Street Transportation Center and Media, Pennsylvania.
  • D. SEPTA Route 15 trolley
    The SEPTA Route 15 trolley is a historic Philadelphia streetcar line running along Girard Avenue, known for using restored PCC trolleys to provide local transit service.
  • E. SEPTA Broad Street Line
    The SEPTA Broad Street Line is a rapid transit subway line running primarily along Broad Street in Philadelphia, providing north–south service through the city’s central corridor.
  • F. None of above.

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_69ad8580c72481909672d37acf647893 completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69ada52c105c8190b8128e66d9b9e8a0 completed March 8, 2026, 4:34 p.m.
NED1 Entity disambiguation (via context triple) batch_69b20f72c2048190ab2aa40a109f5976 completed March 12, 2026, 12:57 a.m.
NEDg Description generation batch_69b21083db7081908f8bc4240fc2b08b completed March 12, 2026, 1:01 a.m.
NED2 Entity disambiguation (via description) batch_69b210fa8a7c8190ae4527161aa3af54 completed March 12, 2026, 1:03 a.m.
Created at: March 8, 2026, 3:04 p.m.