Triple

T7247492
Position Surface form Disambiguated ID Type / Status
Subject North Wales station E156511 entity
Predicate lineThroughStation P848 FINISHED
Object SEPTA Main Line
The SEPTA Main Line is a key commuter rail corridor in the Philadelphia region, carrying multiple Regional Rail services through numerous suburban and urban stations.
E653593 NE FINISHED

How this triple was built (5 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 Main Line | Statement: [North Wales station, lineThroughStation, SEPTA Main Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: SEPTA Main Line
Context triple: [North Wales station, lineThroughStation, SEPTA Main Line]
  • A. 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.
  • B. SEPTA Trenton Line
    The SEPTA Trenton Line is a commuter rail service in the Philadelphia region that connects Center City Philadelphia with Trenton, New Jersey as part of SEPTA's Regional Rail network.
  • C. SEPTA Warminster Line
    The SEPTA Warminster Line is a commuter rail service in the Philadelphia region that connects Center City with suburban communities to the north, terminating in Warminster, Pennsylvania.
  • D. SEPTA Cynwyd Line
    The SEPTA Cynwyd Line is a short commuter rail line in the Philadelphia area that runs between Center City and Cynwyd in Montgomery County.
  • E. SEPTA Paoli/Thorndale Line
    The SEPTA Paoli/Thorndale Line is a major commuter rail route in the Philadelphia region that runs between Center City and western suburbs including Paoli and Thorndale.
  • 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 Main Line
Triple: [North Wales station, lineThroughStation, SEPTA Main Line]
Generated description
The SEPTA Main Line is a key commuter rail corridor in the Philadelphia region, carrying multiple Regional Rail services through numerous suburban and urban stations.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: SEPTA Main Line
Target entity description: The SEPTA Main Line is a key commuter rail corridor in the Philadelphia region, carrying multiple Regional Rail services through numerous suburban and urban stations.
  • A. 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.
  • B. SEPTA Trenton Line
    The SEPTA Trenton Line is a commuter rail service in the Philadelphia region that connects Center City Philadelphia with Trenton, New Jersey as part of SEPTA's Regional Rail network.
  • C. SEPTA Warminster Line
    The SEPTA Warminster Line is a commuter rail service in the Philadelphia region that connects Center City with suburban communities to the north, terminating in Warminster, Pennsylvania.
  • D. SEPTA Cynwyd Line
    The SEPTA Cynwyd Line is a short commuter rail line in the Philadelphia area that runs between Center City and Cynwyd in Montgomery County.
  • E. SEPTA Paoli/Thorndale Line
    The SEPTA Paoli/Thorndale Line is a major commuter rail route in the Philadelphia region that runs between Center City and western suburbs including Paoli and Thorndale.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: lineThroughStation
Context triple: [North Wales station, lineThroughStation, SEPTA Main Line]
  • A. servesAsThroughStationFor
    Indicates that a station functions as an intermediate (through) stop for a particular service, route, or journey rather than as its starting or ending point.
  • B. lineServed
    Indicates that a particular transportation line (such as a bus, train, or metro line) provides service to or is operated at a given stop, station, or route segment.
  • C. connectsToRailStation
    Indicates that one entity has a direct link, route, or access connection to a rail station.
  • D. railwayLine chosen
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • E. lineThrough
    Indicates that a straight geometric line passes through or intersects the referenced entity or set of entities.
  • F. None of above.

Provenance (6 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_69c68827b5e481908dc05e145b2c92d4 completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6ea749fb08190841c0aa8c5bd0727 completed March 27, 2026, 8:37 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7db1278b08190bab9f01287040492 completed March 28, 2026, 1:43 p.m.
NEDg Description generation batch_69c7dcca7c388190927a3055c3ecef7e completed March 28, 2026, 1:51 p.m.
NED2 Entity disambiguation (via description) batch_69c7dd59faa4819087af4a73e0946b82 completed March 28, 2026, 1:53 p.m.
PD Predicate disambiguation batch_69c6e7666ffc81908bf643d8257e6337 completed March 27, 2026, 8:24 p.m.
Created at: March 27, 2026, 2:56 p.m.