Triple

T472020
Position Surface form Disambiguated ID Type / Status
Subject SEPTA Broad Street Line E8578 entity
Predicate hasStation P35 FINISHED
Object Olney Transportation Center
Olney Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key northern terminal and transfer point for SEPTA subway, bus, and regional services.
 E79189 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: Olney Transportation Center | Statement: [SEPTA Broad Street Line, hasStation, Olney Transportation Center]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Olney Transportation Center
Context triple: [SEPTA Broad Street Line, hasStation, Olney Transportation Center]
  • A. Belmont Center station
    Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
  • B. Winchester Center station
    Winchester Center station is a commuter rail station in Winchester, Massachusetts, serving MBTA's Lowell Line north of Boston.
  • C. North Bridge station
    North Bridge station was an early railway terminus in Edinburgh that later became part of what is now Edinburgh Waverley station.
  • D. Trenton Transit Center
    Trenton Transit Center is a major intermodal transportation hub in Trenton, New Jersey, serving NJ Transit, Amtrak, SEPTA, and local bus connections.
  • E. Hunt Valley station
    Hunt Valley station is a light rail transit station in Hunt Valley, Maryland, serving as the northern endpoint of the Baltimore Light RailLink system.
  • 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: Olney Transportation Center
Triple: [SEPTA Broad Street Line, hasStation, Olney Transportation Center]
Generated description
Olney Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key northern terminal and transfer point for SEPTA subway, bus, and regional services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Olney Transportation Center
Target entity description: Olney Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key northern terminal and transfer point for SEPTA subway, bus, and regional services.
  • A. Belmont Center station
    Belmont Center station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop located in the commercial center of Belmont, Massachusetts.
  • B. Winchester Center station
    Winchester Center station is a commuter rail station in Winchester, Massachusetts, serving MBTA's Lowell Line north of Boston.
  • C. North Bridge station
    North Bridge station was an early railway terminus in Edinburgh that later became part of what is now Edinburgh Waverley station.
  • D. Trenton Transit Center
    Trenton Transit Center is a major intermodal transportation hub in Trenton, New Jersey, serving NJ Transit, Amtrak, SEPTA, and local bus connections.
  • E. Hunt Valley station
    Hunt Valley station is a light rail transit station in Hunt Valley, Maryland, serving as the northern endpoint of the Baltimore Light RailLink system.
  • 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_69a2e7f3aeb48190a19453e3a043f486 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2eff24108819092fdb85019ec4089 completed Feb. 28, 2026, 1:38 p.m.
NED1 Entity disambiguation (via context triple) batch_69a56c475ce88190bf16e5ee76f1d3b5 completed March 2, 2026, 10:53 a.m.
NEDg Description generation batch_69a56cdb8bd08190ac98f36a134d78d5 completed March 2, 2026, 10:56 a.m.
NED2 Entity disambiguation (via description) batch_69a56d8713a88190ba3ad6585e64db23 completed March 2, 2026, 10:59 a.m.
Created at: Feb. 28, 2026, 1:12 p.m.