Triple

T1202821

Position	Surface form	Disambiguated ID	Type / Status
Subject	Cambridge city center	`E25820`	entity
Predicate	hasPart	`P35`	FINISHED
Object	Cambridge Public Library main branch The Cambridge Public Library main branch is the central public library facility serving residents and visitors in Cambridge, Massachusetts.	`E137712`	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: Cambridge Public Library main branch | Statement: [Cambridge city center, hasPart, Cambridge Public Library main branch]

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

Target entity: Cambridge Public Library main branch
Context triple: [Cambridge city center, hasPart, Cambridge Public Library main branch]

A. Cambridge Public Library Central Square Branch
Cambridge Public Library Central Square Branch is a neighborhood public library facility in Cambridge, Massachusetts, providing lending services, community programs, and study spaces to residents in the Central Square area.
B. Cambridge Public Library Valente Branch
Cambridge Public Library Valente Branch is a neighborhood public library in Cambridge, Massachusetts, serving the Inman Square area with community-focused collections, programs, and services.
C. Boston Public Library (Copley Square main branch)
The Boston Public Library’s Copley Square main branch is a landmark public library and cultural center renowned for its historic architecture, extensive collections, and prominent role in the city’s intellectual and civic life.
D. Chelsea Public Library
Chelsea Public Library is the public library serving the community of Chelsea, Alabama, providing local residents with access to books, media, and educational resources.
E. Medford Public Library
Medford Public Library is the main public library serving the residents of Medford, Massachusetts with lending materials, community programs, and educational resources.
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: Cambridge Public Library main branch
Triple: [Cambridge city center, hasPart, Cambridge Public Library main branch]

Generated description

The Cambridge Public Library main branch is the central public library facility serving residents and visitors in Cambridge, Massachusetts.

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

Target entity: Cambridge Public Library main branch
Target entity description: The Cambridge Public Library main branch is the central public library facility serving residents and visitors in Cambridge, Massachusetts.

A. Cambridge Public Library Central Square Branch
Cambridge Public Library Central Square Branch is a neighborhood public library facility in Cambridge, Massachusetts, providing lending services, community programs, and study spaces to residents in the Central Square area.
B. Cambridge Public Library Valente Branch
Cambridge Public Library Valente Branch is a neighborhood public library in Cambridge, Massachusetts, serving the Inman Square area with community-focused collections, programs, and services.
C. Boston Public Library (Copley Square main branch)
The Boston Public Library’s Copley Square main branch is a landmark public library and cultural center renowned for its historic architecture, extensive collections, and prominent role in the city’s intellectual and civic life.
D. Chelsea Public Library
Chelsea Public Library is the public library serving the community of Chelsea, Alabama, providing local residents with access to books, media, and educational resources.
E. Medford Public Library
Medford Public Library is the main public library serving the residents of Medford, Massachusetts with lending materials, community programs, and educational resources.
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_69a4942b30f08190a91c60573e16b5ef`	completed	March 1, 2026, 7:31 p.m.
NER	Named-entity recognition	`batch_69a4bdbda0b081909c0147121a945e27`	completed	March 1, 2026, 10:29 p.m.
NED1	Entity disambiguation (via context triple)	`batch_69ac7f3a48d48190ae5179312b52b3ee`	completed	March 7, 2026, 7:40 p.m.
NEDg	Description generation	`batch_69ac7fc59a488190adbdf156aaff8c03`	completed	March 7, 2026, 7:43 p.m.
NED2	Entity disambiguation (via description)	`batch_69ac806a6d748190acc5cdfa8fb90a64`	completed	March 7, 2026, 7:45 p.m.

Created at: March 1, 2026, 7:46 p.m.