M-21 (Michigan highway)
E425978
M-21 is an east–west state trunkline highway in Michigan that runs through several counties, including Kent County, and serves as a key regional route connecting communities in the western part of the state.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M-21 (Michigan highway) canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4286690 — 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: M-21 (Michigan highway) Context triple: [Kent County, Michigan, hasMajorHighway, M-21 (Michigan highway)]
-
A.
M-20 (Michigan highway)
M-20 is an east–west state trunkline highway in Michigan that runs across the central part of the Lower Peninsula, connecting communities such as Big Rapids and Mount Pleasant to US-131 and US-10.
-
B.
M-28 (Michigan highway)
M-28 is a major east–west state trunkline highway in Michigan’s Upper Peninsula that serves as a key route through communities such as Marquette.
-
C.
M-26 (Michigan highway)
M-26 is a state trunkline highway in Michigan’s Upper Peninsula that serves as a key route through the Keweenaw Peninsula, connecting communities such as Houghton and providing access to scenic Lake Superior shoreline areas.
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D.
M-43 (Michigan highway)
M-43 is a state trunkline highway in Michigan that runs through several counties, including Kalamazoo County, connecting rural areas with key urban centers.
-
E.
M-59 (Michigan highway)
M-59 is a major east–west state trunkline highway in Michigan that serves as a key transportation corridor through the northern suburbs of the Detroit metropolitan area.
- 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: M-21 (Michigan highway) Target entity description: M-21 is an east–west state trunkline highway in Michigan that runs through several counties, including Kent County, and serves as a key regional route connecting communities in the western part of the state.
-
A.
M-20 (Michigan highway)
M-20 is an east–west state trunkline highway in Michigan that runs across the central part of the Lower Peninsula, connecting communities such as Big Rapids and Mount Pleasant to US-131 and US-10.
-
B.
M-28 (Michigan highway)
M-28 is a major east–west state trunkline highway in Michigan’s Upper Peninsula that serves as a key route through communities such as Marquette.
-
C.
M-26 (Michigan highway)
M-26 is a state trunkline highway in Michigan’s Upper Peninsula that serves as a key route through the Keweenaw Peninsula, connecting communities such as Houghton and providing access to scenic Lake Superior shoreline areas.
-
D.
M-43 (Michigan highway)
M-43 is a state trunkline highway in Michigan that runs through several counties, including Kalamazoo County, connecting rural areas with key urban centers.
-
E.
M-59 (Michigan highway)
M-59 is a major east–west state trunkline highway in Michigan that serves as a key transportation corridor through the northern suburbs of the Detroit metropolitan area.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
state highway in Michigan
ⓘ
state trunkline highway ⓘ |
| connects |
communities in central Michigan
ⓘ
communities in western Michigan ⓘ |
| connectsWith |
I-75 in Michigan
NERFINISHED
ⓘ
M-13 ⓘ M-37 NERFINISHED ⓘ M-44 NERFINISHED ⓘ M-52 NERFINISHED ⓘ M-66 NERFINISHED ⓘ M-91 NERFINISHED ⓘ US Highway 127 in Michigan NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| follows | Grand River Avenue corridor in some segments ⓘ |
| hasJunctionWith |
Interstate 196 in Michigan
NERFINISHED
ⓘ
Interstate 96 in Michigan NERFINISHED ⓘ US Highway 131 in Michigan NERFINISHED ⓘ |
| highwayNumber | 21 ⓘ |
| highwayType | M highway ⓘ |
| locatedInAdministrativeTerritorialEntity |
Clinton County, Michigan
NERFINISHED
ⓘ
Genesee County, Michigan NERFINISHED ⓘ Ionia County, Michigan NERFINISHED ⓘ Kent County, Michigan NERFINISHED ⓘ Shiawassee County, Michigan NERFINISHED ⓘ |
| maintainedBy | Michigan Department of Transportation NERFINISHED ⓘ |
| orientation | east–west ⓘ |
| partOf | Michigan State Trunkline Highway System NERFINISHED ⓘ |
| passesThrough |
Ada, Michigan
NERFINISHED
ⓘ
Corunna, Michigan NERFINISHED ⓘ Flint, Michigan NERFINISHED ⓘ Flushing, Michigan NERFINISHED ⓘ Grand Rapids, Michigan NERFINISHED ⓘ Ionia, Michigan NERFINISHED ⓘ Lowell, Michigan NERFINISHED ⓘ Ovid, Michigan NERFINISHED ⓘ Owosso, Michigan NERFINISHED ⓘ |
| regionServed |
central Michigan
NERFINISHED
ⓘ
western Michigan NERFINISHED ⓘ |
| roadClassification | arterial highway ⓘ |
| role | key regional route in western and central Michigan ⓘ |
| state |
Michigan (most of state)
ⓘ
surface form:
Michigan
|
| usedFor |
access to urban centers in Michigan
ⓘ
local commuting ⓘ 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: M-21 (Michigan highway) Description of subject: M-21 is an east–west state trunkline highway in Michigan that runs through several counties, including Kent County, and serves as a key regional route connecting communities in the western part of the state.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Kent County, Michigan