Triple

T3268420

Position	Surface form	Disambiguated ID	Type / Status
Subject	Fairmount Heights, Maryland	`E68582`	entity
Predicate	hasHistoricDistrict	`P295`	FINISHED
Object	Fairmount Heights Historic District Fairmount Heights Historic District is a historically significant residential community in Prince George’s County, Maryland, known for its early-20th-century African American heritage and architecture.	`E341422`	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: Fairmount Heights Historic District | Statement: [Fairmount Heights, Maryland, hasHistoricDistrict, Fairmount Heights Historic District]

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

Target entity: Fairmount Heights Historic District
Context triple: [Fairmount Heights, Maryland, hasHistoricDistrict, Fairmount Heights Historic District]

A. Paris Hill Historic District
Paris Hill Historic District is a nationally recognized historic area in Paris, Maine, known for its well-preserved 19th-century architecture and role as the town’s early civic and residential center.
B. Heritage Hill Historic District
Heritage Hill Historic District is a historic residential neighborhood in Burlington, Iowa, known for its well-preserved 19th-century architecture and its reflection of the city’s early prosperity along the Mississippi River.
C. 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.
D. Museum Hill Historic District
The Museum Hill Historic District is a notable historic neighborhood in St. Joseph, Missouri, recognized for its well-preserved 19th- and early 20th-century architecture and cultural significance.
E. Academy Hill Historic District
Academy Hill Historic District is a historically significant neighborhood in Statesville, North Carolina, noted for its preserved 19th- and early 20th-century architecture and its role in the city’s educational and residential development.
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: Fairmount Heights Historic District
Triple: [Fairmount Heights, Maryland, hasHistoricDistrict, Fairmount Heights Historic District]

Generated description

Fairmount Heights Historic District is a historically significant residential community in Prince George’s County, Maryland, known for its early-20th-century African American heritage and architecture.

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

Target entity: Fairmount Heights Historic District
Target entity description: Fairmount Heights Historic District is a historically significant residential community in Prince George’s County, Maryland, known for its early-20th-century African American heritage and architecture.

A. Paris Hill Historic District
Paris Hill Historic District is a nationally recognized historic area in Paris, Maine, known for its well-preserved 19th-century architecture and role as the town’s early civic and residential center.
B. Heritage Hill Historic District
Heritage Hill Historic District is a historic residential neighborhood in Burlington, Iowa, known for its well-preserved 19th-century architecture and its reflection of the city’s early prosperity along the Mississippi River.
C. 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.
D. Museum Hill Historic District
The Museum Hill Historic District is a notable historic neighborhood in St. Joseph, Missouri, recognized for its well-preserved 19th- and early 20th-century architecture and cultural significance.
E. Academy Hill Historic District
Academy Hill Historic District is a historically significant neighborhood in Statesville, North Carolina, noted for its preserved 19th- and early 20th-century architecture and its role in the city’s educational and residential development.
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_69ad8590444081909e8107a8aeef3a23`	completed	March 8, 2026, 2:20 p.m.
NER	Named-entity recognition	`batch_69adafcf9c6c819092f9c618b778b46d`	completed	March 8, 2026, 5:20 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b28ef261ec819091c62620765e2cef`	completed	March 12, 2026, 10:01 a.m.
NEDg	Description generation	`batch_69b28f9efe408190bcb1e16931b2fe62`	completed	March 12, 2026, 10:04 a.m.
NED2	Entity disambiguation (via description)	`batch_69b2a8b873b081909bbb5de329e45169`	completed	March 12, 2026, 11:51 a.m.

Created at: March 8, 2026, 3:09 p.m.