Triple

T1956213

Position	Surface form	Disambiguated ID	Type / Status
Subject	Boston Convention and Exhibition Center	`E42274`	entity
Predicate	ownedBy	`P347`	FINISHED
Object	Massachusetts Convention Center Authority The Massachusetts Convention Center Authority is a public agency that develops, owns, and operates major convention and exhibition facilities in Massachusetts, including Boston’s primary convention centers.	`E218477`	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: Massachusetts Convention Center Authority | Statement: [Boston Convention and Exhibition Center, ownedBy, Massachusetts Convention Center Authority]

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

Target entity: Massachusetts Convention Center Authority
Context triple: [Boston Convention and Exhibition Center, ownedBy, Massachusetts Convention Center Authority]

A. Massachusetts Port Authority
The Massachusetts Port Authority is an independent public agency that owns and operates major transportation facilities in Massachusetts, including Boston’s Logan International Airport and key maritime and cargo terminals.
B. Boston Convention and Exhibition Center
The Boston Convention and Exhibition Center is a large, modern convention facility in Boston’s Seaport District that hosts major trade shows, conferences, and events.
C. Hynes Convention Center
Hynes Convention Center is a major convention and exhibition facility in Boston’s Back Bay, known for hosting large conferences, trade shows, and public events.
D. Metropolitan Entertainment & Convention Authority
Metropolitan Entertainment & Convention Authority is a public organization in Omaha, Nebraska that manages and operates major local sports and entertainment venues and convention facilities.
E. Massachusetts Aeronautics Commission
The Massachusetts Aeronautics Commission was a former state agency responsible for overseeing and promoting aviation and airports within the Commonwealth of Massachusetts.
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: Massachusetts Convention Center Authority
Triple: [Boston Convention and Exhibition Center, ownedBy, Massachusetts Convention Center Authority]

Generated description

The Massachusetts Convention Center Authority is a public agency that develops, owns, and operates major convention and exhibition facilities in Massachusetts, including Boston’s primary convention centers.

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

Target entity: Massachusetts Convention Center Authority
Target entity description: The Massachusetts Convention Center Authority is a public agency that develops, owns, and operates major convention and exhibition facilities in Massachusetts, including Boston’s primary convention centers.

A. Massachusetts Port Authority
The Massachusetts Port Authority is an independent public agency that owns and operates major transportation facilities in Massachusetts, including Boston’s Logan International Airport and key maritime and cargo terminals.
B. Boston Convention and Exhibition Center
The Boston Convention and Exhibition Center is a large, modern convention facility in Boston’s Seaport District that hosts major trade shows, conferences, and events.
C. Hynes Convention Center
Hynes Convention Center is a major convention and exhibition facility in Boston’s Back Bay, known for hosting large conferences, trade shows, and public events.
D. Metropolitan Entertainment & Convention Authority
Metropolitan Entertainment & Convention Authority is a public organization in Omaha, Nebraska that manages and operates major local sports and entertainment venues and convention facilities.
E. Massachusetts Aeronautics Commission
The Massachusetts Aeronautics Commission was a former state agency responsible for overseeing and promoting aviation and airports within the Commonwealth of Massachusetts.
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_69a8870eea088190a38781990812a9bc`	completed	March 4, 2026, 7:25 p.m.
NER	Named-entity recognition	`batch_69abb37b4a38819099f98be92be91ade`	completed	March 7, 2026, 5:11 a.m.
NED1	Entity disambiguation (via context triple)	`batch_69adfbca5a7081908f3fa8eaa8f5aa3d`	completed	March 8, 2026, 10:44 p.m.
NEDg	Description generation	`batch_69adfc6bd8e08190a065a89ab3412126`	completed	March 8, 2026, 10:47 p.m.
NED2	Entity disambiguation (via description)	`batch_69adfcee414c8190b1a0574f6bd55602`	completed	March 8, 2026, 10:49 p.m.

Created at: March 4, 2026, 7:36 p.m.