U.S. Route 1A
E62759
U.S. Route 1A is an alternate alignment of U.S. Route 1 in Maine that serves local traffic and provides access to communities bypassed by the main highway.
All labels observed (3)
| Label | Occurrences |
|---|---|
| U.S. Route 1A canonical | 15 |
| U.S. Route 1A in Maine | 2 |
| U.S. Route 1 (alternate designation) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T250295 — 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: U.S. Route 1A Context triple: [Interstate 395 (Bangor, Maine), connectsTo, U.S. Route 1A]
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A.
U.S. Route 1
U.S. Route 1 is a major north–south United States highway running along the East Coast from Key West, Florida, to Fort Kent, Maine.
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B.
Massachusetts Route 1A
Massachusetts Route 1A is a state highway in Massachusetts that runs parallel to U.S. Route 1, serving numerous North Shore and coastal communities between Boston and the New Hampshire border.
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C.
U.S. Route 19
U.S. Route 19 is a major north–south United States highway running from Erie, Pennsylvania, to Memphis, Florida, passing through several states in the eastern U.S.
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D.
Massachusetts Route 16
Massachusetts Route 16 is a major east–west state highway in Massachusetts that connects several Greater Boston suburbs and communities.
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E.
U.S. Route 1/9
U.S. Route 1/9 is a major combined U.S. Highway corridor in northern New Jersey that carries both US 1 and US 9 through heavily urbanized areas between Newark and the George Washington Bridge into New York City.
- 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: U.S. Route 1A Target entity description: U.S. Route 1A is an alternate alignment of U.S. Route 1 in Maine that serves local traffic and provides access to communities bypassed by the main highway.
-
A.
U.S. Route 1
U.S. Route 1 is a major north–south United States highway running along the East Coast from Key West, Florida, to Fort Kent, Maine.
-
B.
Massachusetts Route 1A
Massachusetts Route 1A is a state highway in Massachusetts that runs parallel to U.S. Route 1, serving numerous North Shore and coastal communities between Boston and the New Hampshire border.
-
C.
U.S. Route 19
U.S. Route 19 is a major north–south United States highway running from Erie, Pennsylvania, to Memphis, Florida, passing through several states in the eastern U.S.
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D.
Massachusetts Route 16
Massachusetts Route 16 is a major east–west state highway in Massachusetts that connects several Greater Boston suburbs and communities.
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E.
U.S. Route 1/9
U.S. Route 1/9 is a major combined U.S. Highway corridor in northern New Jersey that carries both US 1 and US 9 through heavily urbanized areas between Newark and the George Washington Bridge into New York City.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
alternate U.S. Highway
ⓘ
road ⓘ |
| abbreviation | US 1A ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| follows | an older alignment of U.S. Route 1 in parts of Maine ⓘ |
| function |
alternate alignment of U.S. Route 1 in Maine
ⓘ
local access route ⓘ |
| hasDirection |
east–west
ⓘ
north–south ⓘ |
| hasJurisdiction |
Maine
ⓘ
surface form:
State of Maine
|
| highwayNumber | 1A ⓘ |
| isBypassedBy | U.S. Route 1 mainline in some segments ⓘ |
| isLocatedOn | U.S. East Coast corridor in Maine ⓘ |
| isNumberedAfter | U.S. Route 1 ⓘ |
| isSignedAs | U.S. 1A ⓘ |
| isSubsetOf | United States Numbered Highway System ⓘ |
| locatedIn | Maine ⓘ |
| maintainedBy | Maine Department of Transportation ⓘ |
| parentRoute | U.S. Route 1 ⓘ |
| partOf |
United States Numbered Highway System
ⓘ
surface form:
U.S. Highway System
|
| providesAccessTo | communities bypassed by U.S. Route 1 ⓘ |
| purpose | to serve communities not directly on U.S. Route 1 mainline ⓘ |
| roadClassification | federal-aid highway ⓘ |
| routeType | U.S. Highway alternate route ⓘ |
| serves | local 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: U.S. Route 1A Description of subject: U.S. Route 1A is an alternate alignment of U.S. Route 1 in Maine that serves local traffic and provides access to communities bypassed by the main highway.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Interstate 395 (Bangor, Maine)
subject surface form:
Route 1A (Massachusetts)
this entity surface form:
U.S. Route 1 (alternate designation)
this entity surface form:
U.S. Route 1A in Maine
this entity surface form:
U.S. Route 1A in Maine
subject surface form:
Eastern Maine