Triple
T19960747
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Wachusett Aqueduct |
E479805
|
entity |
| Predicate | feeds |
P9008
|
FINISHED |
| Object | MetroWest Water Supply Tunnel |
—
|
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: MetroWest Water Supply Tunnel | Statement: [Wachusett Aqueduct, feeds, MetroWest Water Supply Tunnel]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MetroWest Water Supply Tunnel Context triple: [Wachusett Aqueduct, feeds, MetroWest Water Supply Tunnel]
-
A.
MetroWest Water Supply Tunnel system
chosen
The MetroWest Water Supply Tunnel system is a major underground aqueduct in Massachusetts that delivers drinking water from the Quabbin and Wachusett Reservoirs to the Greater Boston area.
-
B.
Massachusetts Bay Outfall Tunnel
The Massachusetts Bay Outfall Tunnel is a major deep-rock wastewater discharge tunnel off the coast of Boston that carries treated effluent far offshore to reduce pollution in Boston Harbor and Massachusetts Bay.
-
C.
Enlow Tunnel
Enlow Tunnel is a historic railroad tunnel in Pennsylvania that now serves as part of the multi-use Montour Trail for hikers and cyclists.
-
D.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
E.
Maida Hill Tunnel
Maida Hill Tunnel is a 272-yard-long canal tunnel in London that carries the Regent’s Canal beneath the Maida Hill and Little Venice area.
- 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.