Triple
T963455
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Stephen D. Bechtel Sr. |
E20784
|
entity |
| Predicate | notableProject |
P4
|
FINISHED |
| Object |
Boulder Canyon Project (through Bechtel involvement)
The Boulder Canyon Project is the major U.S. public works initiative that led to the construction of Hoover Dam on the Colorado River, a landmark engineering feat in which Bechtel played a key contracting role.
|
E113190
|
NE FINISHED |
How this triple was built (4 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: Boulder Canyon Project (through Bechtel involvement) | Statement: [Stephen D. Bechtel Sr., notableProject, Boulder Canyon Project (through Bechtel involvement)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boulder Canyon Project (through Bechtel involvement) Context triple: [Stephen D. Bechtel Sr., notableProject, Boulder Canyon Project (through Bechtel involvement)]
-
A.
Columbia Basin Project
The Columbia Basin Project is a large-scale irrigation and hydroelectric development in central Washington State that distributes water and power from the Grand Coulee Dam to support agriculture, industry, and communities across the region.
-
B.
State Water Project
The State Water Project is a massive California water storage and delivery system that transports water from northern sources to agricultural, urban, and industrial users across the state, including the Central Valley.
-
C.
Central Valley Project
The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
-
D.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
-
E.
Davis Dam
Davis Dam is a concrete gravity-arch dam on the Colorado River between Nevada and Arizona that forms Lake Mohave and helps regulate water releases from Hoover Dam.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Boulder Canyon Project (through Bechtel involvement) Triple: [Stephen D. Bechtel Sr., notableProject, Boulder Canyon Project (through Bechtel involvement)]
Generated description
The Boulder Canyon Project is the major U.S. public works initiative that led to the construction of Hoover Dam on the Colorado River, a landmark engineering feat in which Bechtel played a key contracting role.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Boulder Canyon Project (through Bechtel involvement) Target entity description: The Boulder Canyon Project is the major U.S. public works initiative that led to the construction of Hoover Dam on the Colorado River, a landmark engineering feat in which Bechtel played a key contracting role.
-
A.
Columbia Basin Project
The Columbia Basin Project is a large-scale irrigation and hydroelectric development in central Washington State that distributes water and power from the Grand Coulee Dam to support agriculture, industry, and communities across the region.
-
B.
State Water Project
The State Water Project is a massive California water storage and delivery system that transports water from northern sources to agricultural, urban, and industrial users across the state, including the Central Valley.
-
C.
Central Valley Project
The Central Valley Project is a large-scale federal water management system in California that stores and delivers water for agriculture, cities, and environmental uses across the Central Valley.
-
D.
Bonneville Dam
Bonneville Dam is a major hydroelectric and navigation dam on the Columbia River in the Pacific Northwest, known for power generation, fish ladders, and its role in regional river management.
-
E.
Davis Dam
Davis Dam is a concrete gravity-arch dam on the Colorado River between Nevada and Arizona that forms Lake Mohave and helps regulate water releases from Hoover Dam.
- F. None of above. chosen
Provenance (5 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_69a493b21f2881908132dcf45dcd2f36 |
completed | March 1, 2026, 7:29 p.m. |
| NER | Named-entity recognition | batch_69a4b416cf4c8190bd685227db25fb53 |
completed | March 1, 2026, 9:48 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac11a6107481909b152291a73958d3 |
completed | March 7, 2026, 11:53 a.m. |
| NEDg | Description generation | batch_69ac12c5978481909be2d6e1ce85acd5 |
completed | March 7, 2026, 11:57 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac132f09448190b5f789f90328f81f |
completed | March 7, 2026, 11:59 a.m. |
Created at: March 1, 2026, 7:40 p.m.