Triple

T12845515
Position Surface form Disambiguated ID Type / Status
Subject Drexel Hill E307164 entity
Predicate hasTransportation P105 FINISHED
Object SEPTA trolley service
SEPTA trolley service is a light rail network in the Philadelphia region that provides local streetcar-style transit connecting neighborhoods like Drexel Hill to the broader metropolitan area.
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 service | Statement: [Drexel Hill, hasTransportation, SEPTA trolley service]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: SEPTA trolley service
Context triple: [Drexel Hill, hasTransportation, SEPTA trolley service]
  • 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 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.
  • C. 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.
  • D. SEPTA Regional Rail
    SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
  • E. 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.
  • 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 service
Triple: [Drexel Hill, hasTransportation, SEPTA trolley service]
Generated description
SEPTA trolley service is a light rail network in the Philadelphia region that provides local streetcar-style transit connecting neighborhoods like Drexel Hill to the broader metropolitan area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: SEPTA trolley service
Target entity description: SEPTA trolley service is a light rail network in the Philadelphia region that provides local streetcar-style transit connecting neighborhoods like Drexel Hill to the broader metropolitan area.
  • 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 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.
  • C. 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.
  • D. SEPTA Regional Rail
    SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
  • E. 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.
  • 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_69d7bdf5e7cc8190be357278bc5ba3bb completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d96ff49efc8190bd6bbac510cc4705 completed April 10, 2026, 9:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f69b9fa40c8190bbc2c6ad22795de4 completed May 3, 2026, 12:49 a.m.
NEDg Description generation batch_69f69ca6358c8190bb076249864f81a8 completed May 3, 2026, 12:53 a.m.
NED2 Entity disambiguation (via description) batch_69f69dc8b86c81908557fa8538e942de completed May 3, 2026, 12:58 a.m.
Created at: April 9, 2026, 5:36 p.m.