Triple
T22015604
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | E. V. Spence Reservoir |
E543700
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Upper Colorado River Authority |
—
|
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: Upper Colorado River Authority | Statement: [E. V. Spence Reservoir, operator, Upper Colorado River Authority]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Upper Colorado River Authority Context triple: [E. V. Spence Reservoir, operator, Upper Colorado River Authority]
-
A.
Lower Colorado River Authority
The Lower Colorado River Authority is a Texas-based public utility and conservation agency that manages water resources, generates and transmits electricity, and oversees flood control and environmental stewardship along the lower Colorado River basin.
-
B.
Colorado River Commission
The Colorado River Commission was an interstate body formed in the early 20th century to represent basin states and negotiate the allocation and management of the Colorado River’s waters.
-
C.
Northern Colorado Water Conservancy District
The Northern Colorado Water Conservancy District is a public water agency that manages and delivers Colorado-Big Thompson Project water supplies to municipalities, industries, and agricultural users across northeastern Colorado.
-
D.
Meewasin Valley Authority
Meewasin Valley Authority is a conservation and development agency responsible for protecting, managing, and enhancing the river valley and natural spaces in and around Saskatoon, Saskatchewan.
-
E.
Southeastern Colorado Water Conservancy District
The Southeastern Colorado Water Conservancy District is a regional public agency responsible for developing, managing, and distributing water resources to support municipal, industrial, and agricultural needs in southeastern Colorado.
- 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: Upper Colorado River Authority Target entity description: The Upper Colorado River Authority is a regional water management agency in Texas responsible for conserving, developing, and managing surface water resources within the upper Colorado River basin.
-
A.
Lower Colorado River Authority
The Lower Colorado River Authority is a Texas-based public utility and conservation agency that manages water resources, generates and transmits electricity, and oversees flood control and environmental stewardship along the lower Colorado River basin.
-
B.
Colorado River Commission
The Colorado River Commission was an interstate body formed in the early 20th century to represent basin states and negotiate the allocation and management of the Colorado River’s waters.
-
C.
Northern Colorado Water Conservancy District
The Northern Colorado Water Conservancy District is a public water agency that manages and delivers Colorado-Big Thompson Project water supplies to municipalities, industries, and agricultural users across northeastern Colorado.
-
D.
Meewasin Valley Authority
Meewasin Valley Authority is a conservation and development agency responsible for protecting, managing, and enhancing the river valley and natural spaces in and around Saskatoon, Saskatchewan.
-
E.
Southeastern Colorado Water Conservancy District
The Southeastern Colorado Water Conservancy District is a regional public agency responsible for developing, managing, and distributing water resources to support municipal, industrial, and agricultural needs in southeastern Colorado.
- 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_69e11e2db934819095556760c7d85e4d |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f127a774548190bcd98dc28f2d2c5f |
completed | April 28, 2026, 9:33 p.m. |
Created at: April 16, 2026, 8:22 p.m.