Triple
T19960696
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Cosgrove Tunnel |
E479804
|
entity |
| Predicate | endPoint |
P390
|
FINISHED |
| Object | MetroWest Water Supply Tunnel system |
—
|
NE NERFINISHED |
How this triple was built (3 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 system | Statement: [Cosgrove Tunnel, endPoint, MetroWest Water Supply Tunnel system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MetroWest Water Supply Tunnel system Context triple: [Cosgrove Tunnel, endPoint, MetroWest Water Supply Tunnel system]
-
A.
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.
-
B.
North Bay Aqueduct
The North Bay Aqueduct is a key water conveyance facility in California that delivers State Water Project supplies to communities in Solano and Napa counties.
-
C.
South Bay Aqueduct
South Bay Aqueduct is a major California water conveyance facility that transports water from the State Water Project to communities in the southern San Francisco Bay Area.
-
D.
New York City Water Tunnel No. 3
New York City Water Tunnel No. 3 is a massive, long-term infrastructure project designed to modernize and provide redundancy to New York City’s drinking water distribution network.
-
E.
Central Artery/Tunnel Project
The Central Artery/Tunnel Project, commonly known as the "Big Dig," was a massive Boston infrastructure megaproject that rerouted the city’s central highway into tunnels to reduce congestion and reclaim urban space.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MetroWest Water Supply Tunnel system Target entity description: 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.
-
A.
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.
-
B.
North Bay Aqueduct
The North Bay Aqueduct is a key water conveyance facility in California that delivers State Water Project supplies to communities in Solano and Napa counties.
-
C.
South Bay Aqueduct
South Bay Aqueduct is a major California water conveyance facility that transports water from the State Water Project to communities in the southern San Francisco Bay Area.
-
D.
New York City Water Tunnel No. 3
New York City Water Tunnel No. 3 is a massive, long-term infrastructure project designed to modernize and provide redundancy to New York City’s drinking water distribution network.
-
E.
Central Artery/Tunnel Project
The Central Artery/Tunnel Project, commonly known as the "Big Dig," was a massive Boston infrastructure megaproject that rerouted the city’s central highway into tunnels to reduce congestion and reclaim urban space.
- F. None of above. chosen
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.