Triple

T399450

Position	Surface form	Disambiguated ID	Type / Status
Subject	Lexington Battle Green	`E9246`	entity
Predicate	partOf	`P40`	FINISHED
Object	Lexington Center historic district The Lexington Center historic district is a central area in Lexington, Massachusetts, known for its well-preserved colonial-era buildings and its pivotal role in the opening battles of the American Revolutionary War.	`E9246`	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: Lexington Center historic district | Statement: [Lexington Battle Green, partOf, Lexington Center historic district]

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

Target entity: Lexington Center historic district
Context triple: [Lexington Battle Green, partOf, Lexington Center historic district]

A. Winchester Center Historic District
Winchester Center Historic District is a preserved area in downtown Winchester, Massachusetts, known for its concentration of historically and architecturally significant civic, commercial, and residential buildings.
B. Belmont Center Historic District
Belmont Center Historic District is a historically significant commercial and civic core of Belmont, Massachusetts, noted for its early 20th-century architecture and role as the town’s primary downtown area.
C. West End Historic District
The West End Historic District is a preserved warehouse and commercial area in Dallas known for its redbrick architecture, museums, restaurants, and role as a major tourist and entertainment destination.
D. Central Square Historic District
The Central Square Historic District is a designated historic area known for its preserved architecture and cultural significance surrounding Central Square.
E. Lexington Battle Green
Lexington Battle Green is the historic town common in Lexington, Massachusetts, where the opening shots of the American Revolutionary War were fired and which now serves as a memorial site to that event.
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: Lexington Center historic district
Triple: [Lexington Battle Green, partOf, Lexington Center historic district]

Generated description

The Lexington Center historic district is a central area in Lexington, Massachusetts, known for its well-preserved colonial-era buildings and its pivotal role in the opening battles of the American Revolutionary War.

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

Target entity: Lexington Center historic district
Target entity description: The Lexington Center historic district is a central area in Lexington, Massachusetts, known for its well-preserved colonial-era buildings and its pivotal role in the opening battles of the American Revolutionary War.

A. Winchester Center Historic District
Winchester Center Historic District is a preserved area in downtown Winchester, Massachusetts, known for its concentration of historically and architecturally significant civic, commercial, and residential buildings.
B. Belmont Center Historic District
Belmont Center Historic District is a historically significant commercial and civic core of Belmont, Massachusetts, noted for its early 20th-century architecture and role as the town’s primary downtown area.
C. West End Historic District
The West End Historic District is a preserved warehouse and commercial area in Dallas known for its redbrick architecture, museums, restaurants, and role as a major tourist and entertainment destination.
D. Central Square Historic District
The Central Square Historic District is a designated historic area known for its preserved architecture and cultural significance surrounding Central Square.
E. Lexington Battle Green chosen
Lexington Battle Green is the historic town common in Lexington, Massachusetts, where the opening shots of the American Revolutionary War were fired and which now serves as a memorial site to that event.
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_69a2e8004cb88190b92ed1add6abf41a`	completed	Feb. 28, 2026, 1:05 p.m.
NER	Named-entity recognition	`batch_69a2ec8d0ca881909d786e8eed9b6748`	completed	Feb. 28, 2026, 1:24 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69a41772e19c8190b02a212f13b4d8aa`	completed	March 1, 2026, 10:39 a.m.
NEDg	Description generation	`batch_69a417d8d8ac8190b9e36238b7bd9132`	completed	March 1, 2026, 10:41 a.m.
NED2	Entity disambiguation (via description)	`batch_69a4184c1b1c8190b728a2ef5cdc8346`	completed	March 1, 2026, 10:43 a.m.

Created at: Feb. 28, 2026, 1:08 p.m.