Triple

T4379953

Position	Surface form	Disambiguated ID	Type / Status
Subject	Pensacola and Atlantic Railroad	`E99104`	entity
Predicate	connectsTo	`P845`	FINISHED
Object	Jacksonville, Pensacola and Mobile Railroad The Jacksonville, Pensacola and Mobile Railroad was a 19th-century rail line in the southeastern United States that formed part of an important east–west transportation corridor across northern Florida and into Alabama.	`E99104`	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: Jacksonville, Pensacola and Mobile Railroad | Statement: [Pensacola and Atlantic Railroad, connectsTo, Jacksonville, Pensacola and Mobile Railroad]

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

Target entity: Jacksonville, Pensacola and Mobile Railroad
Context triple: [Pensacola and Atlantic Railroad, connectsTo, Jacksonville, Pensacola and Mobile Railroad]

A. Pensacola and Atlantic Railroad
The Pensacola and Atlantic Railroad was a 19th-century rail line in Florida that played a key role in opening and developing the Florida Panhandle by connecting it to major transportation networks.
B. Seaboard System Railroad
Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
C. Western and Atlantic Railroad
The Western and Atlantic Railroad was a 19th-century U.S. rail line in Georgia that played a crucial role in the development of Atlanta as a major transportation hub.
D. Seaboard Coast Line Railroad
Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
E. Seaboard Air Line Railroad
Seaboard Air Line Railroad was a major American railroad that operated in the southeastern United States, known for its prominent passenger services and streamlined trains.
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: Jacksonville, Pensacola and Mobile Railroad
Triple: [Pensacola and Atlantic Railroad, connectsTo, Jacksonville, Pensacola and Mobile Railroad]

Generated description

The Jacksonville, Pensacola and Mobile Railroad was a 19th-century rail line in the southeastern United States that formed part of an important east–west transportation corridor across northern Florida and into Alabama.

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

Target entity: Jacksonville, Pensacola and Mobile Railroad
Target entity description: The Jacksonville, Pensacola and Mobile Railroad was a 19th-century rail line in the southeastern United States that formed part of an important east–west transportation corridor across northern Florida and into Alabama.

A. Pensacola and Atlantic Railroad chosen
The Pensacola and Atlantic Railroad was a 19th-century rail line in Florida that played a key role in opening and developing the Florida Panhandle by connecting it to major transportation networks.
B. Seaboard System Railroad
Seaboard System Railroad was a major U.S. freight railroad of the 1980s that consolidated several southeastern carriers and later became part of CSX Transportation.
C. Western and Atlantic Railroad
The Western and Atlantic Railroad was a 19th-century U.S. rail line in Georgia that played a crucial role in the development of Atlanta as a major transportation hub.
D. Seaboard Coast Line Railroad
Seaboard Coast Line Railroad was a major Class I railroad in the southeastern United States, formed in 1967 and known for both freight operations and prominent passenger services before becoming part of CSX Transportation.
E. Seaboard Air Line Railroad
Seaboard Air Line Railroad was a major American railroad that operated in the southeastern United States, known for its prominent passenger services and streamlined trains.
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_69b3454ea8f48190a49c2436624d6ef6`	completed	March 12, 2026, 10:59 p.m.
NER	Named-entity recognition	`batch_69b3524154dc81908532cdf997dcb802`	completed	March 12, 2026, 11:54 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b5f5e210108190bf14731ce3774b6b`	completed	March 14, 2026, 11:57 p.m.
NEDg	Description generation	`batch_69b5f689da008190ae5bd42af1f95bfa`	completed	March 15, 2026, midnight
NED2	Entity disambiguation (via description)	`batch_69b5f72f5dac819081f98d835c467aca`	completed	March 15, 2026, 12:02 a.m.

Created at: March 12, 2026, 11:18 p.m.