Triple

T26152443

Position	Surface form	Disambiguated ID	Type / Status
Subject	Park Street surface-level streetcar stops (historical)	`E659864`	entity
Predicate	integratedWith	`P2830`	FINISHED
Object	Tremont Street surface tracks Tremont Street surface tracks were the historic streetcar tracks running along Tremont Street in downtown Boston that carried surface trolleys before they were largely replaced by the Tremont Street Subway.	`E1712215`	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: Tremont Street surface tracks | Statement: [Park Street surface-level streetcar stops (historical), integratedWith, Tremont Street surface tracks]

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: Tremont Street surface tracks
Triple: [Park Street surface-level streetcar stops (historical), integratedWith, Tremont Street surface tracks]

Generated description

Tremont Street surface tracks were the historic streetcar tracks running along Tremont Street in downtown Boston that carried surface trolleys before they were largely replaced by the Tremont Street Subway.

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_69ee5bc5a9908190899d39ce95c6d215`	completed	April 26, 2026, 6:39 p.m.
NER	Named-entity recognition	`batch_69f60c0bac8081909e39d4e0aaf0f31d`	completed	May 2, 2026, 2:37 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a11277044748190a6e0eafe799e3700`	completed	May 23, 2026, 4:05 a.m.
NEDg	Description generation	`batch_6a1151eef96c8190a071c82455e93f93`	completed	May 23, 2026, 7:06 a.m.
NED2	Entity disambiguation (via description)	`batch_6a1152925f2c819087f09c331e3e0344`	completed	May 23, 2026, 7:09 a.m.

Created at: April 26, 2026, 8:26 p.m.