Triple

T3731034

Position	Surface form	Disambiguated ID	Type / Status
Subject	Plymouth Church, Brooklyn	`E79062`	entity
Predicate	nickname	`P55`	FINISHED
Object	The Grand Central Depot of the Underground Railroad The Grand Central Depot of the Underground Railroad is a historic nickname for Plymouth Church in Brooklyn, renowned for its central role in sheltering and aiding enslaved people seeking freedom before the Civil War.	`E384858`	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: The Grand Central Depot of the Underground Railroad | Statement: [Plymouth Church, Brooklyn, nickname, The Grand Central Depot of the Underground Railroad]

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

Target entity: The Grand Central Depot of the Underground Railroad
Context triple: [Plymouth Church, Brooklyn, nickname, The Grand Central Depot of the Underground Railroad]

A. Harriet Tubman Square station
Harriet Tubman Square station is a Newark Light Rail stop in downtown Newark, New Jersey, serving the area around Harriet Tubman Square.
B. Historic Folsom Station
Historic Folsom Station is a light rail transit stop in Folsom, California, serving as a key terminus and access point for the Sacramento Regional Transit system in the historic downtown area.
C. Old Depot Museum
The Old Depot Museum is a local history museum in Selma, Alabama, housed in a historic former train depot and dedicated to preserving and interpreting the region’s cultural and historical heritage.
D. Springfield Union Station
Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
E. Thomas Edison Depot Museum
The Thomas Edison Depot Museum is a historical museum in Port Huron, Michigan, dedicated to the early life and inventions of Thomas Edison, housed in the former railroad depot where he once worked.
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: The Grand Central Depot of the Underground Railroad
Triple: [Plymouth Church, Brooklyn, nickname, The Grand Central Depot of the Underground Railroad]

Generated description

The Grand Central Depot of the Underground Railroad is a historic nickname for Plymouth Church in Brooklyn, renowned for its central role in sheltering and aiding enslaved people seeking freedom before the Civil War.

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

Target entity: The Grand Central Depot of the Underground Railroad
Target entity description: The Grand Central Depot of the Underground Railroad is a historic nickname for Plymouth Church in Brooklyn, renowned for its central role in sheltering and aiding enslaved people seeking freedom before the Civil War.

A. Harriet Tubman Square station
Harriet Tubman Square station is a Newark Light Rail stop in downtown Newark, New Jersey, serving the area around Harriet Tubman Square.
B. Historic Folsom Station
Historic Folsom Station is a light rail transit stop in Folsom, California, serving as a key terminus and access point for the Sacramento Regional Transit system in the historic downtown area.
C. Old Depot Museum
The Old Depot Museum is a local history museum in Selma, Alabama, housed in a historic former train depot and dedicated to preserving and interpreting the region’s cultural and historical heritage.
D. Springfield Union Station
Springfield Union Station is a historic intermodal transportation hub in downtown Springfield, Massachusetts, serving as a major regional center for rail and bus travel.
E. Thomas Edison Depot Museum
The Thomas Edison Depot Museum is a historical museum in Port Huron, Michigan, dedicated to the early life and inventions of Thomas Edison, housed in the former railroad depot where he once worked.
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_69ad8b0e4650819090ad7cef094285e8`	completed	March 8, 2026, 2:43 p.m.
NER	Named-entity recognition	`batch_69adcb21002c81908438170ed6f6c271`	completed	March 8, 2026, 7:16 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b4db167c5881909772cf1e78717995`	completed	March 14, 2026, 3:50 a.m.
NEDg	Description generation	`batch_69b4dc41a54c819099081242687e9011`	completed	March 14, 2026, 3:55 a.m.
NED2	Entity disambiguation (via description)	`batch_69b4dcb9235c8190af2b5a5d222e8413`	completed	March 14, 2026, 3:57 a.m.

Created at: March 8, 2026, 3:34 p.m.