State Route 21
E936213
State Route 21 is a primary north–south state highway in Alabama that connects several major towns and communities across the state.
All labels observed (1)
| Label | Occurrences |
|---|---|
| State Route 21 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8216975 — 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: State Route 21 Context triple: [SR 21 (Alabama), abbreviation, State Route 21]
-
A.
State Route 21
State Route 21 is a state highway in Washington that runs through rural areas including Lincoln County, connecting small communities and serving as a regional transportation corridor.
-
B.
State Route 21
State Route 21 is a major north–south highway in northeastern Ohio that serves as a key connector through cities such as Massillon.
-
C.
State Route 210
State Route 210 is a major east–west freeway in Southern California that serves as part of the Foothill Freeway corridor, connecting cities across the Inland Empire and the greater Los Angeles area.
-
D.
State Route 23
State Route 23 is a California state highway that runs through Ventura County and connects coastal and inland communities in Southern California.
-
E.
State Route 20
State Route 20 is a major Washington State highway that spans the North Cascades, serving as a key east–west route for travel, commerce, and tourism.
- 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: State Route 21 Target entity description: State Route 21 is a primary north–south state highway in Alabama that connects several major towns and communities across the state.
-
A.
State Route 21
State Route 21 is a state highway in Washington that runs through rural areas including Lincoln County, connecting small communities and serving as a regional transportation corridor.
-
B.
State Route 21
State Route 21 is a major north–south highway in northeastern Ohio that serves as a key connector through cities such as Massillon.
-
C.
State Route 210
State Route 210 is a major east–west freeway in Southern California that serves as part of the Foothill Freeway corridor, connecting cities across the Inland Empire and the greater Los Angeles area.
-
D.
State Route 23
State Route 23 is a California state highway that runs through Ventura County and connects coastal and inland communities in Southern California.
-
E.
State Route 20
State Route 20 is a major Washington State highway that spans the North Cascades, serving as a key east–west route for travel, commerce, and tourism.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
road transportation infrastructure
ⓘ
state highway ⓘ |
| abbreviation |
AL 21
ⓘ
SR 21 ⓘ |
| connects |
Anniston, Alabama
ⓘ
Atmore, Alabama ⓘ Camden, Alabama ⓘ Maplesville, Alabama ⓘ Monroeville, Alabama ⓘ Piedmont, Alabama ⓘ Selma, Alabama ⓘ Sylacauga, Alabama ⓘ Talladega, Alabama ⓘ
linked to:
Talladega
|
| country |
United States
ⓘ
linked to:
United States of America
|
| function | primary state highway ⓘ |
| hasJunctionWith |
U.S. highways in Alabama
ⓘ
other Alabama state routes ⓘ |
| highwayNumber | 21 ⓘ |
| highwayType | State Route ⓘ |
| locatedIn | Alabama ⓘ |
| maintainedBy | Alabama Department of Transportation ⓘ |
| orientation | north–south ⓘ |
| partOf |
Alabama State Route System
ⓘ
linked to:
Alabama state highway system
|
| passesThrough |
Calhoun County, Alabama
NERFINISHED
ⓘ
Cherokee County, Alabama NERFINISHED ⓘ Chilton County, Alabama NERFINISHED ⓘ Coosa County, Alabama NERFINISHED ⓘ Dallas County, Alabama ⓘ Escambia County, Alabama NERFINISHED ⓘ Monroe County, Alabama NERFINISHED ⓘ Talladega County, Alabama ⓘ Wilcox County, Alabama NERFINISHED ⓘ |
| roadSurface | paved ⓘ |
| role | connects several major towns and communities across Alabama ⓘ |
| state | Alabama ⓘ |
| terminusDirectionNorth | north ⓘ |
| terminusDirectionSouth | south ⓘ |
| usedFor |
local access
ⓘ
regional travel ⓘ |
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: State Route 21 Description of subject: State Route 21 is a primary north–south state highway in Alabama that connects several major towns and communities across the state.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
SR 21