Triple

T27964648

Position	Surface form	Disambiguated ID	Type / Status
Subject	MBTA Red Line at Harvard station	`E704681`	entity
Predicate	hasEntrance	`P6140`	FINISHED
Object	Brattle Square Brattle Square is a public square in Harvard Square, Cambridge, Massachusetts, known for its shops, restaurants, and proximity to Harvard University and the Harvard MBTA Red Line station.	`E1812074`	NE FINISHED

How this triple was built (2 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: Brattle Square | Statement: [MBTA Red Line at Harvard station, hasEntrance, Brattle Square]

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: Brattle Square
Triple: [MBTA Red Line at Harvard station, hasEntrance, Brattle Square]

Generated description

Brattle Square is a public square in Harvard Square, Cambridge, Massachusetts, known for its shops, restaurants, and proximity to Harvard University and the Harvard MBTA Red Line station.

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_69ef841061e48190b5570f9562f7434d`	completed	April 27, 2026, 3:43 p.m.
NER	Named-entity recognition	`batch_69f63b0660d0819086441dc8c8baffef`	completed	May 2, 2026, 5:57 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a1606f4c08881909e3a8650b2bfbf72`	completed	May 26, 2026, 8:47 p.m.
NEDg	Description generation	`batch_6a1612e18e8c8190b09f4603345ef0c7`	completed	May 26, 2026, 9:38 p.m.
NED2	Entity disambiguation (via description)	`batch_6a1613c4f4908190bdf67095802e7e75`	completed	May 26, 2026, 9:42 p.m.

Created at: April 27, 2026, 7:34 p.m.