M-21
E1271562
UNEXPLORED
M-21 is a state highway in Michigan that serves as an important east–west transportation route across the central part of the state.
All labels observed (1)
| Label | Occurrences |
|---|---|
| M-21 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T17492968 — 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 Context triple: [Grattan Township, Michigan, roadAccessVia, M-21]
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A.
M-21
The M-21 was a specialized variant of the Lockheed A-12 reconnaissance aircraft, modified to carry and launch the D-21 unmanned reconnaissance drone from its back at high altitude and speed.
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B.
M-22
M-22 is a scenic state highway in Michigan renowned for its picturesque route along the Lake Michigan shoreline and through the Leelanau Peninsula near Traverse City.
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C.
M-2
M-2 is a major motorway designated as route M-2, typically serving as an important high-speed road corridor in its region.
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D.
M-20
M-20 is a state trunkline highway in Michigan that runs east–west across the central part of the state, connecting communities such as Midland to the broader regional road network.
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E.
M-102
M-102 is a state trunkline highway in Michigan best known as Detroit’s Eight Mile Road, a major east–west thoroughfare that serves as a cultural and socioeconomic dividing line in the region.
- 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 Target entity description: M-21 is a state highway in Michigan that serves as an important east–west transportation route across the central part of the state.
-
A.
M-21
The M-21 was a specialized variant of the Lockheed A-12 reconnaissance aircraft, modified to carry and launch the D-21 unmanned reconnaissance drone from its back at high altitude and speed.
-
B.
M-22
M-22 is a scenic state highway in Michigan renowned for its picturesque route along the Lake Michigan shoreline and through the Leelanau Peninsula near Traverse City.
-
C.
M-2
M-2 is a major motorway designated as route M-2, typically serving as an important high-speed road corridor in its region.
-
D.
M-20
M-20 is a state trunkline highway in Michigan that runs east–west across the central part of the state, connecting communities such as Midland to the broader regional road network.
-
E.
M-102
M-102 is a regional road in the Community of Madrid, Spain, that provides access to and from the town of Torrelaguna.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.