Triple

T1090078

Position	Surface form	Disambiguated ID	Type / Status
Subject	Cornelius Vanderbilt	`E24141`	entity
Predicate	owned	`P347`	FINISHED
Object	New York and Harlem Railroad The New York and Harlem Railroad was one of the earliest rail lines in New York State, forming a key part of the region’s 19th-century transportation network and later becoming a cornerstone of Cornelius Vanderbilt’s railroad empire.	`E138548`	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: New York and Harlem Railroad | Statement: [Cornelius Vanderbilt, owned, New York and Harlem Railroad]

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

Target entity: New York and Harlem Railroad
Context triple: [Cornelius Vanderbilt, owned, New York and Harlem Railroad]

A. Hudson and Manhattan Railroad
The Hudson and Manhattan Railroad was an early 20th-century rapid transit system that operated tunnels and trains between Manhattan and New Jersey, forming the core of what is now the PATH system.
B. New York Central Railroad
New York Central Railroad was one of the largest and most influential American railroads, known for its extensive network in the northeastern United States and iconic passenger trains like the 20th Century Limited.
C. New York, New Haven and Hartford Railroad
The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
D. Camden and Atlantic Railroad
The Camden and Atlantic Railroad was a 19th-century rail line in southern New Jersey that played a key role in connecting Camden to the Atlantic coast and fostering regional development.
E. Trailways of New York
Trailways of New York is a long-distance intercity bus company serving routes across New York State and beyond.
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: New York and Harlem Railroad
Triple: [Cornelius Vanderbilt, owned, New York and Harlem Railroad]

Generated description

The New York and Harlem Railroad was one of the earliest rail lines in New York State, forming a key part of the region’s 19th-century transportation network and later becoming a cornerstone of Cornelius Vanderbilt’s railroad empire.

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

Target entity: New York and Harlem Railroad
Target entity description: The New York and Harlem Railroad was one of the earliest rail lines in New York State, forming a key part of the region’s 19th-century transportation network and later becoming a cornerstone of Cornelius Vanderbilt’s railroad empire.

A. Hudson and Manhattan Railroad
The Hudson and Manhattan Railroad was an early 20th-century rapid transit system that operated tunnels and trains between Manhattan and New Jersey, forming the core of what is now the PATH system.
B. New York Central Railroad
New York Central Railroad was one of the largest and most influential American railroads, known for its extensive network in the northeastern United States and iconic passenger trains like the 20th Century Limited.
C. New York, New Haven and Hartford Railroad
The New York, New Haven and Hartford Railroad was a major railroad in the northeastern United States that operated extensive passenger and freight services across New England and into New York City during the late 19th and early 20th centuries.
D. Camden and Atlantic Railroad
The Camden and Atlantic Railroad was a 19th-century rail line in southern New Jersey that played a key role in connecting Camden to the Atlantic coast and fostering regional development.
E. Trailways of New York
Trailways of New York is a long-distance intercity bus company serving routes across New York State and beyond.
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_69a49404428c819092dcc9632f5f7b8b`	completed	March 1, 2026, 7:31 p.m.
NER	Named-entity recognition	`batch_69a4b97f216881909e9b8943ce2078e4`	completed	March 1, 2026, 10:11 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69ac7f2b76308190a843ccad1ef95f07`	completed	March 7, 2026, 7:40 p.m.
NEDg	Description generation	`batch_69ac7fba00f0819086a0fffa090c5809`	completed	March 7, 2026, 7:42 p.m.
NED2	Entity disambiguation (via description)	`batch_69ac807ead9c819088f7195aec87a538`	completed	March 7, 2026, 7:46 p.m.

Created at: March 1, 2026, 7:42 p.m.