Triple

T164902

Position	Surface form	Disambiguated ID	Type / Status
Subject	Broadway Limited	`E2991`	entity
Predicate	namedAfter	`P63`	FINISHED
Object	Broadway (Pennsylvania Railroad four-track main line) Broadway (Pennsylvania Railroad four-track main line) was the Pennsylvania Railroad’s premier high-speed, four-track trunk route across Pennsylvania, renowned as the backbone of its passenger and freight operations.	`E8353`	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: Broadway (Pennsylvania Railroad four-track main line) | Statement: [Broadway Limited, namedAfter, Broadway (Pennsylvania Railroad four-track main line)]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Broadway (Pennsylvania Railroad four-track main line)
Context triple: [Broadway Limited, namedAfter, Broadway (Pennsylvania Railroad four-track main line)]

A. Paoli/Thorndale Line
The Paoli/Thorndale Line is a major commuter rail route in the Philadelphia region that runs west from Center City to Paoli and Thorndale, serving numerous suburban communities along the former Pennsylvania Railroad Main Line.
B. Trenton Line
Trenton Line is a commuter rail service in the Philadelphia region operated by SEPTA Regional Rail, connecting Center City Philadelphia with Trenton, New Jersey.
C. 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.
D. West Trenton Line
The West Trenton Line is a commuter rail service in the Philadelphia region that connects Center City to West Trenton, New Jersey, as part of SEPTA's Regional Rail network.
E. Camden Line
The Camden Line is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and surrounding communities as part of the MARC Train 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: Broadway (Pennsylvania Railroad four-track main line)
Triple: [Broadway Limited, namedAfter, Broadway (Pennsylvania Railroad four-track main line)]

Generated description

Broadway (Pennsylvania Railroad four-track main line) was the Pennsylvania Railroad’s premier high-speed, four-track trunk route across Pennsylvania, renowned as the backbone of its passenger and freight operations.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Broadway (Pennsylvania Railroad four-track main line)
Target entity description: Broadway (Pennsylvania Railroad four-track main line) was the Pennsylvania Railroad’s premier high-speed, four-track trunk route across Pennsylvania, renowned as the backbone of its passenger and freight operations.

A. Paoli/Thorndale Line
The Paoli/Thorndale Line is a major commuter rail route in the Philadelphia region that runs west from Center City to Paoli and Thorndale, serving numerous suburban communities along the former Pennsylvania Railroad Main Line.
B. Trenton Line
Trenton Line is a commuter rail service in the Philadelphia region operated by SEPTA Regional Rail, connecting Center City Philadelphia with Trenton, New Jersey.
C. Main Line (Philadelphia to Pittsburgh) chosen
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.
D. West Trenton Line
The West Trenton Line is a commuter rail service in the Philadelphia region that connects Center City to West Trenton, New Jersey, as part of SEPTA's Regional Rail network.
E. Camden Line
The Camden Line is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and surrounding communities as part of the MARC Train system.
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_69a2524ce1e48190ab066bf72859f474`	completed	Feb. 28, 2026, 2:26 a.m.
NER	Named-entity recognition	`batch_69a258827da481909b20ea5e9d21676f`	completed	Feb. 28, 2026, 2:52 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69a3695789388190bb91b6247d16c2bc`	completed	Feb. 28, 2026, 10:16 p.m.
NEDg	Description generation	`batch_69a369d2b56c8190a6381b2da3e42e18`	completed	Feb. 28, 2026, 10:18 p.m.
NED2	Entity disambiguation (via description)	`batch_69a36a9f31408190b8f0e8273ff3a298`	completed	Feb. 28, 2026, 10:22 p.m.

Created at: Feb. 28, 2026, 2:34 a.m.