Triple

T1932818
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Suburban Transit Division E40983 entity
Predicate partOf P40 FINISHED
Object SEPTA surface transit system
The SEPTA surface transit system is the network of buses, trolleys, and trackless trolleys operated by Philadelphia’s regional transit authority to provide street-level public transportation throughout the city and surrounding suburbs.
E40466 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 surface transit system | Statement: [SEPTA Suburban Transit Division, partOf, SEPTA surface transit system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: SEPTA surface transit system
Context triple: [SEPTA Suburban Transit Division, partOf, SEPTA surface transit system]
  • A. SEPTA rapid transit network
    The SEPTA rapid transit network is the system of high-capacity urban rail lines serving Philadelphia and some surrounding suburbs, operated by the Southeastern Pennsylvania Transportation Authority.
  • B. SEPTA
    SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
  • C. SEPTA Suburban Transit Division
    The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
  • D. SEPTA City Transit Division
    The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
  • E. 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.
  • 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 surface transit system
Triple: [SEPTA Suburban Transit Division, partOf, SEPTA surface transit system]
Generated description
The SEPTA surface transit system is the network of buses, trolleys, and trackless trolleys operated by Philadelphia’s regional transit authority to provide street-level public transportation throughout the city and surrounding suburbs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: SEPTA surface transit system
Target entity description: The SEPTA surface transit system is the network of buses, trolleys, and trackless trolleys operated by Philadelphia’s regional transit authority to provide street-level public transportation throughout the city and surrounding suburbs.
  • A. SEPTA rapid transit network
    The SEPTA rapid transit network is the system of high-capacity urban rail lines serving Philadelphia and some surrounding suburbs, operated by the Southeastern Pennsylvania Transportation Authority.
  • B. SEPTA
    SEPTA is the regional public transportation authority serving Philadelphia and its surrounding counties, operating buses, subways, trolleys, and commuter rail services.
  • C. SEPTA Suburban Transit Division
    The SEPTA Suburban Transit Division is the part of Philadelphia’s regional transit system that operates bus, trolley, and other public transportation services in the suburban areas surrounding the city.
  • D. SEPTA City Transit Division chosen
    The SEPTA City Transit Division is the branch of Philadelphia’s regional transit authority that operates the city’s buses, trolleys, and subway–elevated lines.
  • E. 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.
  • 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_69a8864711648190b07bed24ed76258e completed March 4, 2026, 7:21 p.m.
NER Named-entity recognition batch_69abb299f3c48190a5021d320ded4405 completed March 7, 2026, 5:07 a.m.
NED1 Entity disambiguation (via context triple) batch_69af2b526edc8190b4958f63268c6e97 completed March 9, 2026, 8:19 p.m.
NEDg Description generation batch_69af4aa7334c81908490c96b6378f7b7 completed March 9, 2026, 10:33 p.m.
NED2 Entity disambiguation (via description) batch_69af4acc28ac81909c8bfd1ec84c817b completed March 9, 2026, 10:33 p.m.
Created at: March 4, 2026, 7:35 p.m.