Triple

T4217915

Position	Surface form	Disambiguated ID	Type / Status
Subject	Mercer Island Community and Event Center	`E94265`	entity
Predicate	operatedBy	`P86`	FINISHED
Object	City of Mercer Island Parks and Recreation Department The City of Mercer Island Parks and Recreation Department is the municipal agency responsible for managing Mercer Island’s parks, recreational programs, and community facilities.	`E420956`	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: City of Mercer Island Parks and Recreation Department | Statement: [Mercer Island Community and Event Center, operatedBy, City of Mercer Island Parks and Recreation Department]

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

Target entity: City of Mercer Island Parks and Recreation Department
Context triple: [Mercer Island Community and Event Center, operatedBy, City of Mercer Island Parks and Recreation Department]

A. Mercer Island Community and Event Center
Mercer Island Community and Event Center is a public facility on Mercer Island, Washington that hosts recreational programs, community gatherings, and special events for local residents.
B. Seattle Parks and Recreation
Seattle Parks and Recreation is the municipal department responsible for managing and maintaining Seattle’s public parks, open spaces, and recreational facilities and programs.
C. Mercer Island Library
Mercer Island Library is a public library serving the community of Mercer Island in Washington State as part of the King County Library System.
D. Mercer Island, Washington, United States
Mercer Island, Washington, United States is a suburban city located on an island in Lake Washington between Seattle and Bellevue, known for its affluent residential character and scenic surroundings.
E. Mercer Island School District
Mercer Island School District is a public school district serving students on Mercer Island, a suburban community near Seattle in Washington State.
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: City of Mercer Island Parks and Recreation Department
Triple: [Mercer Island Community and Event Center, operatedBy, City of Mercer Island Parks and Recreation Department]

Generated description

The City of Mercer Island Parks and Recreation Department is the municipal agency responsible for managing Mercer Island’s parks, recreational programs, and community facilities.

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

Target entity: City of Mercer Island Parks and Recreation Department
Target entity description: The City of Mercer Island Parks and Recreation Department is the municipal agency responsible for managing Mercer Island’s parks, recreational programs, and community facilities.

A. Mercer Island Community and Event Center
Mercer Island Community and Event Center is a public facility on Mercer Island, Washington that hosts recreational programs, community gatherings, and special events for local residents.
B. Seattle Parks and Recreation
Seattle Parks and Recreation is the municipal department responsible for managing and maintaining Seattle’s public parks, open spaces, and recreational facilities and programs.
C. Mercer Island Library
Mercer Island Library is a public library serving the community of Mercer Island in Washington State as part of the King County Library System.
D. Mercer Island, Washington, United States
Mercer Island, Washington, United States is a suburban city located on an island in Lake Washington between Seattle and Bellevue, known for its affluent residential character and scenic surroundings.
E. Mercer Island School District
Mercer Island School District is a public school district serving students on Mercer Island, a suburban community near Seattle in Washington State.
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_69b3451997e08190851db4a9a588837d`	completed	March 12, 2026, 10:58 p.m.
NER	Named-entity recognition	`batch_69b34beb470481909ceff19195417f19`	completed	March 12, 2026, 11:27 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69b5963d3bd8819086465701f4c6adf5`	completed	March 14, 2026, 5:09 p.m.
NEDg	Description generation	`batch_69b596dbb19c81908080af37ecfe2497`	completed	March 14, 2026, 5:11 p.m.
NED2	Entity disambiguation (via description)	`batch_69b5976663d88190a73a729554e91074`	completed	March 14, 2026, 5:14 p.m.

Created at: March 12, 2026, 11:04 p.m.