Triple

T92364
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Subway–Surface Trolley Lines E1855 entity
Predicate centralTunnelTerminus P388 FINISHED
Object 40th Street Portal
40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
E13334 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: 40th Street Portal | Statement: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 40th Street Portal]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: 40th Street Portal
Context triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 40th Street Portal]
  • A. Sproul Plaza
    Sproul Plaza is the central public square of UC Berkeley’s campus, historically renowned as a focal point for student activism and free speech movements.
  • B. Union Station
    Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
  • C. 14th Street Bridge complex
    The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
  • D. Conley Terminal
    Conley Terminal is the primary container shipping facility serving the Port of Boston and New England’s maritime trade.
  • E. Concourse C
    Concourse C is one of the main passenger terminal concourses at Washington Dulles International Airport, serving numerous domestic and international airline gates.
  • 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: 40th Street Portal
Triple: [SEPTA Subway–Surface Trolley Lines, centralTunnelTerminus, 40th Street Portal]
Generated description
40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: 40th Street Portal
Target entity description: 40th Street Portal is a major West Philadelphia transit junction where SEPTA’s subway–surface trolley lines emerge from the underground tunnel to continue on surface streets.
  • A. Sproul Plaza
    Sproul Plaza is the central public square of UC Berkeley’s campus, historically renowned as a focal point for student activism and free speech movements.
  • B. Union Station
    Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
  • C. 14th Street Bridge complex
    The 14th Street Bridge complex is a group of highway and railway bridges over the Potomac River that serves as a major transportation link between Northern Virginia and Washington, D.C.
  • D. Conley Terminal
    Conley Terminal is the primary container shipping facility serving the Port of Boston and New England’s maritime trade.
  • E. Concourse C
    Concourse C is one of the main passenger terminal concourses at Washington Dulles International Airport, serving numerous domestic and international airline gates.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a2567dd770819088eb77ffc6d2d1cf completed Feb. 28, 2026, 2:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2981ed378819099ef3fbff2236a94 completed Feb. 28, 2026, 7:24 a.m.
NEDg Description generation batch_69a298822e7c8190b37a31a9cc19bc54 completed Feb. 28, 2026, 7:25 a.m.
NED2 Entity disambiguation (via description) batch_69a298f38e4881908210642539f15378 completed Feb. 28, 2026, 7:27 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.