Triple

T137316
Position Surface form Disambiguated ID Type / Status
Subject MARC Train E2774 entity
Predicate line P1293 FINISHED
Object Penn Line
The Penn Line is a MARC commuter rail service in Maryland that runs along the busy Northeast Corridor between Washington, D.C., and Perryville, serving major intermediate stops such as Baltimore.
E27724 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: Penn Line | Statement: [MARC Train, line, Penn Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Penn Line
Context triple: [MARC Train, line, Penn Line]
  • A. Keystone Corridor
    Keystone Corridor is a major passenger rail route in Pennsylvania that connects Philadelphia with Harrisburg and other central Pennsylvania destinations.
  • B. Main Line (Philadelphia to Pittsburgh)
    Main Line (Philadelphia to Pittsburgh) was a major east–west rail corridor across Pennsylvania that formed the core route linking Philadelphia and Pittsburgh and became central to the state’s transportation and economic development.
  • C. Blue Line
    The Blue Line is one of the color-coded rapid transit routes in the Washington Metro system, running through key parts of Washington, D.C. and its Virginia suburbs.
  • D. Blue Line
    The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
  • E. Purple Line
    The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
  • 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: Penn Line
Triple: [MARC Train, line, Penn Line]
Generated description
The Penn Line is a MARC commuter rail service in Maryland that runs along the busy Northeast Corridor between Washington, D.C., and Perryville, serving major intermediate stops such as Baltimore.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Penn Line
Target entity description: The Penn Line is a MARC commuter rail service in Maryland that runs along the busy Northeast Corridor between Washington, D.C., and Perryville, serving major intermediate stops such as Baltimore.
  • A. Keystone Corridor
    Keystone Corridor is a major passenger rail route in Pennsylvania that connects Philadelphia with Harrisburg and other central Pennsylvania destinations.
  • B. Main Line (Philadelphia to Pittsburgh)
    Main Line (Philadelphia to Pittsburgh) was a major east–west rail corridor across Pennsylvania that formed the core route linking Philadelphia and Pittsburgh and became central to the state’s transportation and economic development.
  • C. Blue Line
    The Blue Line is one of the color-coded rapid transit routes in the Washington Metro system, running through key parts of Washington, D.C. and its Virginia suburbs.
  • D. Blue Line
    The Blue Line is a major rapid transit route in Chicago that runs between O'Hare International Airport and the city's western suburbs via downtown.
  • E. Purple Line
    The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
  • 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_69a2521e35c08190b28e5c9f1e3c9b59 completed Feb. 28, 2026, 2:25 a.m.
NER Named-entity recognition batch_69a257a6cab88190944c8f74d8d1605c completed Feb. 28, 2026, 2:49 a.m.
NED1 Entity disambiguation (via context triple) batch_69a34418bb848190ac26adef7f990f93 completed Feb. 28, 2026, 7:38 p.m.
NEDg Description generation batch_69a34543689c8190ac8e25ffcf3b4fb3 completed Feb. 28, 2026, 7:42 p.m.
NED2 Entity disambiguation (via description) batch_69a345748c808190b0f8f2a00c3705e2 completed Feb. 28, 2026, 7:43 p.m.
Created at: Feb. 28, 2026, 2:31 a.m.