Triple

T14070082
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Bus Route 57 E338581 entity
Predicate isPartOf P10 FINISHED
Object Philadelphia public transportation system
The Philadelphia public transportation system is a citywide network of buses, subways, trolleys, and regional rail services primarily operated by SEPTA that connects neighborhoods within Philadelphia and its surrounding suburbs.
E1078079 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: Philadelphia public transportation system | Statement: [SEPTA Bus Route 57, isPartOf, Philadelphia public transportation system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Philadelphia public transportation system
Context triple: [SEPTA Bus Route 57, isPartOf, Philadelphia public transportation system]
  • A. Philadelphia subway system
    The Philadelphia subway system is the rapid transit network serving Philadelphia, Pennsylvania, primarily operated by SEPTA and consisting of multiple underground and elevated lines that connect the city and surrounding areas.
  • B. Chicago metropolitan transportation network
    The Chicago metropolitan transportation network is an extensive, multimodal system of roads, railways, buses, and airports that connects the city of Chicago with its surrounding suburbs and regional destinations.
  • C. Unitrans bus system
    The Unitrans bus system is a public transit service in Davis, California, primarily operated by UC Davis students and serving both the university campus and the surrounding community.
  • D. Bi-State Development Agency (Metro) transit system
    The Bi-State Development Agency (Metro) transit system is the public transportation network for the St. Louis region, operating MetroLink light rail, MetroBus services, and paratransit across Missouri and Illinois communities.
  • E. Philadelphia Suburban Transportation Company
    The Philadelphia Suburban Transportation Company was a private transit operator that ran suburban trolley and bus services in the Philadelphia region before being absorbed into the Southeastern Pennsylvania Transportation Authority (SEPTA).
  • 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: Philadelphia public transportation system
Triple: [SEPTA Bus Route 57, isPartOf, Philadelphia public transportation system]
Generated description
The Philadelphia public transportation system is a citywide network of buses, subways, trolleys, and regional rail services primarily operated by SEPTA that connects neighborhoods within Philadelphia and its surrounding suburbs.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Philadelphia public transportation system
Target entity description: The Philadelphia public transportation system is a citywide network of buses, subways, trolleys, and regional rail services primarily operated by SEPTA that connects neighborhoods within Philadelphia and its surrounding suburbs.
  • A. Philadelphia subway system
    The Philadelphia subway system is the rapid transit network serving Philadelphia, Pennsylvania, primarily operated by SEPTA and consisting of multiple underground and elevated lines that connect the city and surrounding areas.
  • B. Chicago metropolitan transportation network
    The Chicago metropolitan transportation network is an extensive, multimodal system of roads, railways, buses, and airports that connects the city of Chicago with its surrounding suburbs and regional destinations.
  • C. Unitrans bus system
    The Unitrans bus system is a public transit service in Davis, California, primarily operated by UC Davis students and serving both the university campus and the surrounding community.
  • D. Bi-State Development Agency (Metro) transit system
    The Bi-State Development Agency (Metro) transit system is the public transportation network for the St. Louis region, operating MetroLink light rail, MetroBus services, and paratransit across Missouri and Illinois communities.
  • E. Philadelphia Suburban Transportation Company
    The Philadelphia Suburban Transportation Company was a private transit operator that ran suburban trolley and bus services in the Philadelphia region before being absorbed into the Southeastern Pennsylvania Transportation Authority (SEPTA).
  • 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_69d81c67ba6c819091935650dfb3b895 completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de568d0404819087e0fe37c72162cb completed April 14, 2026, 3 p.m.
NED1 Entity disambiguation (via context triple) batch_69fcb66cfe2c8190af8354316d4f4df9 completed May 7, 2026, 3:57 p.m.
NEDg Description generation batch_69fcc5c893dc81908538136e0f9170ca completed May 7, 2026, 5:03 p.m.
NED2 Entity disambiguation (via description) batch_69fcc64ac93c8190ad40a04c74f70e18 completed May 7, 2026, 5:05 p.m.
Created at: April 9, 2026, 10:21 p.m.