Great Sioux Reservation
E464176
The Great Sioux Reservation was a vast area of land in the northern Great Plains set aside in the 19th century for the Lakota Sioux and related tribes, encompassing much of present-day South Dakota and surrounding regions before being repeatedly reduced by the U.S. government.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Great Sioux Reservation canonical | 5 |
| Lakota homelands | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4708304 — 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: Great Sioux Reservation Context triple: [Fort Laramie Treaty of 1868, established, Great Sioux Reservation]
-
A.
Cheyenne River Indian Reservation
The Cheyenne River Indian Reservation is a large Native American reservation in central South Dakota that is home primarily to the Cheyenne River Sioux Tribe, a Lakota nation.
-
B.
Omaha Reservation
The Omaha Reservation is a Native American reservation in northeastern Nebraska that serves as the homeland and administrative center of the Omaha people.
-
C.
Winnebago Reservation
The Winnebago Reservation is the federally recognized homeland of the Ho-Chunk people of the Winnebago Tribe of Nebraska, located in northeastern Nebraska.
-
D.
Standing Rock Indian Reservation
Standing Rock Indian Reservation is a Native American reservation of the Lakota and Dakota (Sioux) people, known for its significant cultural heritage and its central role in recent environmental and indigenous rights movements.
-
E.
Osage Nation reservation
The Osage Nation reservation is a federally recognized Native American reservation in northeastern Oklahoma that serves as the homeland and governmental center of the Osage Nation.
- 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: Great Sioux Reservation Target entity description: The Great Sioux Reservation was a vast area of land in the northern Great Plains set aside in the 19th century for the Lakota Sioux and related tribes, encompassing much of present-day South Dakota and surrounding regions before being repeatedly reduced by the U.S. government.
-
A.
Cheyenne River Indian Reservation
The Cheyenne River Indian Reservation is a large Native American reservation in central South Dakota that is home primarily to the Cheyenne River Sioux Tribe, a Lakota nation.
-
B.
Omaha Reservation
The Omaha Reservation is a Native American reservation in northeastern Nebraska that serves as the homeland and administrative center of the Omaha people.
-
C.
Winnebago Reservation
The Winnebago Reservation is the federally recognized homeland of the Ho-Chunk people of the Winnebago Tribe of Nebraska, located in northeastern Nebraska.
-
D.
Standing Rock Indian Reservation
Standing Rock Indian Reservation is a Native American reservation of the Lakota and Dakota (Sioux) people, known for its significant cultural heritage and its central role in recent environmental and indigenous rights movements.
-
E.
Osage Nation reservation
The Osage Nation reservation is a federally recognized Native American reservation in northeastern Oklahoma that serves as the homeland and governmental center of the Osage Nation.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
former Indian reservation
ⓘ
historic region ⓘ |
| containsHistoricRegion | Black Hills NERFINISHED ⓘ |
| containsRiver |
Bad River
NERFINISHED
ⓘ
Cheyenne River NERFINISHED ⓘ Missouri River NERFINISHED ⓘ White River NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdByTreaty | Treaty of Fort Laramie (1868) NERFINISHED ⓘ |
| dissolvedInPractice | by early 20th century ⓘ |
| ethnicGroup |
Blackfeet Lakota
NERFINISHED
ⓘ
Brulé Lakota NERFINISHED ⓘ Dakota Sioux NERFINISHED ⓘ Hunkpapa Lakota NERFINISHED ⓘ Lakota Sioux NERFINISHED ⓘ Miniconjou Lakota NERFINISHED ⓘ Nakota Sioux NERFINISHED ⓘ Oglala Lakota NERFINISHED ⓘ Sans Arc Lakota NERFINISHED ⓘ Two Kettles Lakota NERFINISHED ⓘ Yanktonai Dakota NERFINISHED ⓘ |
| legalDispute | United States v. Sioux Nation of Indians NERFINISHED ⓘ |
| legalSuccessor |
Cheyenne River Indian Reservation
NERFINISHED
ⓘ
Crow Creek Indian Reservation NERFINISHED ⓘ Lower Brule Indian Reservation NERFINISHED ⓘ Pine Ridge Indian Reservation NERFINISHED ⓘ Rosebud Indian Reservation NERFINISHED ⓘ Standing Rock Indian Reservation NERFINISHED ⓘ Yankton Sioux Reservation NERFINISHED ⓘ |
| locatedIn |
Dakota Territory
NERFINISHED
ⓘ
Northern Great Plains NERFINISHED ⓘ |
| locatedInPresentDay |
Montana
NERFINISHED
ⓘ
Nebraska NERFINISHED ⓘ North Dakota NERFINISHED ⓘ South Dakota NERFINISHED ⓘ |
| notableChange | Black Hills confiscated without consent in 1877 ⓘ |
| notableFeature | reserved exclusive use and occupation to the Sioux ⓘ |
| originalAreaApprox | over 60 million acres ⓘ |
| reducedBy |
U.S. Congress
NERFINISHED
ⓘ
U.S. federal government land acts ⓘ |
| significantEvent |
Agreement of 1877
NERFINISHED
ⓘ
Allotment under the Dawes Act ⓘ Battle of the Little Bighorn NERFINISHED ⓘ Black Hills Gold Rush NERFINISHED ⓘ Great Sioux War of 1876 NERFINISHED ⓘ Wounded Knee Massacre NERFINISHED ⓘ |
| startTime | 1868 ⓘ |
| timePeriod | late 19th century ⓘ |
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: Great Sioux Reservation Description of subject: The Great Sioux Reservation was a vast area of land in the northern Great Plains set aside in the 19th century for the Lakota Sioux and related tribes, encompassing much of present-day South Dakota and surrounding regions before being repeatedly reduced by the U.S. government.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lakota homelands
this entity surface form:
Lakota homelands