South Dakota Highway 18
E284498
South Dakota Highway 18 is an east–west state highway running across southern South Dakota, connecting numerous small towns and rural areas near the Nebraska border.
All labels observed (1)
| Label | Occurrences |
|---|---|
| South Dakota Highway 18 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T2192760 — 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: South Dakota Highway 18 Context triple: [Canton, South Dakota, roadAccess, South Dakota Highway 18]
-
A.
South Dakota Highway 11
South Dakota Highway 11 is a state highway in southeastern South Dakota that runs north–south through several counties, connecting rural communities and serving as a regional route near the Sioux Falls metropolitan area.
-
B.
South Dakota Highway 105
South Dakota Highway 105 is a state highway in southeastern South Dakota that serves as a local connector route within Union County.
-
C.
South Dakota Highway 48
South Dakota Highway 48 is a state highway in southeastern South Dakota that serves as an east–west route through Union County, connecting local communities to regional road networks.
-
D.
South Dakota Highway 115
South Dakota Highway 115 is a state highway in eastern South Dakota that serves as a key north–south route connecting Sioux Falls with surrounding communities and intersecting major regional roads.
-
E.
South Dakota Highway 42
South Dakota Highway 42 is a state highway in South Dakota that serves as an east–west route connecting rural areas and cities such as Sioux Falls.
- 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: South Dakota Highway 18 Target entity description: South Dakota Highway 18 is an east–west state highway running across southern South Dakota, connecting numerous small towns and rural areas near the Nebraska border.
-
A.
South Dakota Highway 11
South Dakota Highway 11 is a state highway in southeastern South Dakota that runs north–south through several counties, connecting rural communities and serving as a regional route near the Sioux Falls metropolitan area.
-
B.
South Dakota Highway 105
South Dakota Highway 105 is a state highway in southeastern South Dakota that serves as a local connector route within Union County.
-
C.
South Dakota Highway 48
South Dakota Highway 48 is a state highway in southeastern South Dakota that serves as an east–west route through Union County, connecting local communities to regional road networks.
-
D.
South Dakota Highway 115
South Dakota Highway 115 is a state highway in eastern South Dakota that serves as a key north–south route connecting Sioux Falls with surrounding communities and intersecting major regional roads.
-
E.
South Dakota Highway 42
South Dakota Highway 42 is a state highway in South Dakota that serves as an east–west route connecting rural areas and cities such as Sioux Falls.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
road transportation infrastructure
ⓘ
state highway ⓘ |
| category |
State highways in South Dakota
ⓘ
Transportation in South Dakota ⓘ |
| connects |
rural areas in southern South Dakota
ⓘ
small towns in southern South Dakota ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| direction | east–west ⓘ |
| hasJunctionWith | U.S. Route 18 (at some locations where they may overlap or connect) ⓘ |
| hasLanes | two-lane segments ⓘ |
| highwayNumber | 18 ⓘ |
| highwayType | State Highway ⓘ |
| locatedIn | South Dakota ⓘ |
| maintainedBy | South Dakota Department of Transportation ⓘ |
| parallelTo | Nebraska border ⓘ |
| partOf | South Dakota state highway system ⓘ |
| passesNear | Nebraska state line ⓘ |
| passesThroughRegion |
south-central South Dakota
ⓘ
south-eastern South Dakota ⓘ |
| roadSurface | paved ⓘ |
| runsAcross | southern South Dakota ⓘ |
| serves |
local traffic in southern South Dakota
ⓘ
regional traffic near the Nebraska border ⓘ |
| speedLimitType | rural highway speed limits ⓘ |
| usedFor | motor vehicle traffic ⓘ |
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: South Dakota Highway 18 Description of subject: South Dakota Highway 18 is an east–west state highway running across southern South Dakota, connecting numerous small towns and rural areas near the Nebraska border.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.