Triple
T19960722
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cosgrove Tunnel |
E479804
|
entity |
| Predicate | locatedInHydrologicSystem |
P8237
|
FINISHED |
| Object | Quabbin–Wachusett water system |
—
|
NE NERFINISHED |
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: Quabbin–Wachusett water system | Statement: [Cosgrove Tunnel, locatedInHydrologicSystem, Quabbin–Wachusett water system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Quabbin–Wachusett water system Context triple: [Cosgrove Tunnel, locatedInHydrologicSystem, Quabbin–Wachusett water system]
-
A.
Wachusett Reservoir
Wachusett Reservoir is a large man-made lake in central Massachusetts that serves as a major drinking water supply for the Greater Boston area.
-
B.
Quabbin Reservoir
chosen
Quabbin Reservoir is a large man-made lake in central Massachusetts that serves as one of the primary drinking water sources for the Boston metropolitan area and is surrounded by protected forest and wildlife habitat.
-
C.
Middlesex Fells Reservation water system
The Middlesex Fells Reservation water system is a network of reservoirs and related infrastructure in Massachusetts that historically supplied drinking water and now supports recreation and conservation within the Middlesex Fells Reservation.
-
D.
Scituate Reservoir
Scituate Reservoir is the largest freshwater body in Rhode Island and the primary drinking water source for the city of Providence and several surrounding communities.
-
E.
Quabbin Reservoir region
The Quabbin Reservoir region is a largely forested, sparsely populated area of central Massachusetts centered on one of the largest man-made public water supplies in the United States, known for its protected watershed, wildlife, and recreation.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8e523c19881909f9197037200dde6 |
completed | April 10, 2026, 11:55 a.m. |
| NER | Named-entity recognition | batch_69e65af4520c81909986a47289ba801e |
completed | April 20, 2026, 4:57 p.m. |
Created at: April 10, 2026, 1:54 p.m.