Triple

T23734093

Position	Surface form	Disambiguated ID	Type / Status
Subject	Sutro Tunnel	`E586490`	entity
Predicate	instanceOf	`P0`	FINISHED
Object	mining tunnel	`C47996`	CONCEPT FINISHED

How this triple was built (1 step)

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.

CD Concept disambiguation gpt-5-mini-2025-08-07

Target class: mining tunnel
Context triple: [Sutro Tunnel, instanceOf, mining tunnel]

A. salt mine
A salt mine is an underground or surface excavation where naturally occurring salt deposits are extracted for industrial, commercial, and culinary use.
B. coal mine
A coal mine is an industrial site where coal is extracted from underground or surface deposits for use as fuel and raw material.
C. mining basin
A mining basin is a geographic area characterized by extensive mineral deposits and concentrated mining activities, often including associated infrastructure and environmental impacts.
D. transportation tunnel
A transportation tunnel is an underground or enclosed passageway designed to allow vehicles, trains, or pedestrians to travel safely through or beneath natural or man-made obstacles.
E. tin mine
A tin mine is an excavation or system of workings where tin ore is extracted from the earth for processing and metal production.
F. None of above. chosen

Provenance (1 batch)

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_69e24907dc9c8190be074c9c96a0ec2d`	completed	April 17, 2026, 2:51 p.m.

Created at: April 17, 2026, 7:10 p.m.