Boyer River
E908549
The Boyer River is a tributary of the Missouri River that flows through western Iowa, draining a largely agricultural region before joining the Missouri near Omaha.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Boyer River canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6730466 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Boyer River Context triple: [Western Iowa, hasRiver, Boyer River]
-
A.
Sprague River
Sprague River is a river in southern Oregon that flows through rural Klamath County and provides important habitat and water resources before joining the Klamath River.
-
B.
Bagaduce River
The Bagaduce River is a tidal river and estuary in Hancock County, Maine, known for its scenic shoreline, shellfish harvesting, and importance to local coastal communities.
-
C.
Warroad River
The Warroad River is a short river in northern Minnesota that flows into Lake of the Woods near the city of Warroad.
-
D.
Ashuelot River
The Ashuelot River is a significant river in southwestern New Hampshire that flows southward through towns like Keene before joining the Connecticut River.
-
E.
Goodpaster River
The Goodpaster River is a remote river in eastern Alaska known for its clear waters, salmon runs, and largely undeveloped wilderness surroundings.
- 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: Boyer River Target entity description: The Boyer River is a tributary of the Missouri River that flows through western Iowa, draining a largely agricultural region before joining the Missouri near Omaha.
-
A.
Sprague River
Sprague River is a river in southern Oregon that flows through rural Klamath County and provides important habitat and water resources before joining the Klamath River.
-
B.
Bagaduce River
The Bagaduce River is a tidal river and estuary in Hancock County, Maine, known for its scenic shoreline, shellfish harvesting, and importance to local coastal communities.
-
C.
Warroad River
The Warroad River is a short river in northern Minnesota that flows into Lake of the Woods near the city of Warroad.
-
D.
Ashuelot River
The Ashuelot River is a significant river in southwestern New Hampshire that flows southward through towns like Keene before joining the Connecticut River.
-
E.
Goodpaster River
The Goodpaster River is a remote river in eastern Alaska known for its clear waters, salmon runs, and largely undeveloped wilderness surroundings.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | United States of America ⓘ |
| continent | North America ⓘ |
| country | United States of America ⓘ |
| drains | agricultural region ⓘ |
| flowsNear |
Arion, Iowa
NERFINISHED
ⓘ
Denison, Iowa NERFINISHED ⓘ Dow City, Iowa NERFINISHED ⓘ Logan, Iowa NERFINISHED ⓘ Missouri Valley, Iowa NERFINISHED ⓘ |
| flowsThrough |
Carroll County, Iowa
NERFINISHED
ⓘ
Crawford County, Iowa NERFINISHED ⓘ Harrison County, Iowa NERFINISHED ⓘ Pottawattamie County, Iowa NERFINISHED ⓘ Shelby County, Iowa NERFINISHED ⓘ |
| hasChannelization | yes ⓘ |
| hasFloodingIssues | yes ⓘ |
| hasMajorLandUseInBasin |
livestock farming
GENERATED
ⓘ
row-crop agriculture GENERATED ⓘ |
| hasMouthElevation | approximately 970 feet ⓘ |
| locatedIn |
Iowa
ⓘ
western Iowa ⓘ |
| mouthLocatedIn | Missouri River NERFINISHED ⓘ |
| mouthNear | Omaha, Nebraska NERFINISHED ⓘ |
| region | Midwestern United States ⓘ |
| riverSystem |
Mississippi River watershed
NERFINISHED
ⓘ
Missouri River basin NERFINISHED ⓘ |
| state | Iowa ⓘ |
| tributaryOf | Missouri River NERFINISHED ⓘ |
| usedFor | agricultural drainage ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Boyer River Description of subject: The Boyer River is a tributary of the Missouri River that flows through western Iowa, draining a largely agricultural region before joining the Missouri near Omaha.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Western Iowa