Maryland state line
E678964
The Maryland state line is the boundary separating the state of Maryland from its neighboring states, including Pennsylvania’s Bedford County.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Maryland state line canonical | 2 |
| Delaware–Maryland state line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7654089 — 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: Maryland state line Context triple: [Bedford County, borders, Maryland state line]
-
A.
District of Columbia–Maryland border
The District of Columbia–Maryland border is the boundary line separating Washington, D.C. from the state of Maryland, running through both urban and natural areas in the region.
-
B.
Maryland–West Virginia boundary (traditional)
The Maryland–West Virginia boundary (traditional) is the historic state line in the central Appalachian region whose course was long defined by early colonial surveys and landmarks such as the Fairfax Stone.
-
C.
Maryland state line at Friendship Heights
The Maryland state line at Friendship Heights marks the northern boundary between Washington, D.C. and Maryland in the Friendship Heights commercial and residential neighborhood.
-
D.
Virginia–West Virginia boundary
The Virginia–West Virginia boundary is the state line that separates Virginia from its northwestern neighbor West Virginia, following a historically contested course through the Appalachian region.
-
E.
Georgia–South Carolina state line
The Georgia–South Carolina state line is the boundary separating the U.S. states of Georgia and South Carolina, largely following the course of the Savannah River.
- 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: Maryland state line Target entity description: The Maryland state line is the boundary separating the state of Maryland from its neighboring states, including Pennsylvania’s Bedford County.
-
A.
District of Columbia–Maryland border
The District of Columbia–Maryland border is the boundary line separating Washington, D.C. from the state of Maryland, running through both urban and natural areas in the region.
-
B.
Maryland–West Virginia boundary (traditional)
The Maryland–West Virginia boundary (traditional) is the historic state line in the central Appalachian region whose course was long defined by early colonial surveys and landmarks such as the Fairfax Stone.
-
C.
Maryland state line at Friendship Heights
The Maryland state line at Friendship Heights marks the northern boundary between Washington, D.C. and Maryland in the Friendship Heights commercial and residential neighborhood.
-
D.
Virginia–West Virginia boundary
The Virginia–West Virginia boundary is the state line that separates Virginia from its northwestern neighbor West Virginia, following a historically contested course through the Appalachian region.
-
E.
Georgia–South Carolina state line
The Georgia–South Carolina state line is the boundary separating the U.S. states of Georgia and South Carolina, largely following the course of the Savannah River.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
political boundary
ⓘ
state boundary ⓘ |
| bordersCounty |
Accomack County, Virginia
NERFINISHED
ⓘ
Adams County, Pennsylvania NERFINISHED ⓘ Bedford County, Pennsylvania NERFINISHED ⓘ Berkeley County, West Virginia NERFINISHED ⓘ Chester County, Pennsylvania NERFINISHED ⓘ Fairfax County, Virginia NERFINISHED ⓘ Franklin County, Pennsylvania NERFINISHED ⓘ Fulton County, Pennsylvania NERFINISHED ⓘ Grant County, West Virginia NERFINISHED ⓘ Hampshire County, West Virginia NERFINISHED ⓘ Hardy County, West Virginia NERFINISHED ⓘ Jefferson County, West Virginia NERFINISHED ⓘ Lancaster County, Pennsylvania NERFINISHED ⓘ Loudoun County, Virginia NERFINISHED ⓘ Mineral County, West Virginia NERFINISHED ⓘ Morgan County, West Virginia NERFINISHED ⓘ New Castle County, Delaware NERFINISHED ⓘ Sussex County, Delaware NERFINISHED ⓘ York County, Pennsylvania NERFINISHED ⓘ |
| country | United States of America ⓘ |
| definedBy | Mason–Dixon Line NERFINISHED ⓘ |
| establishedBy | colonial charters ⓘ |
| followsFeature |
Atlantic coastline
ⓘ
North Branch Potomac River NERFINISHED ⓘ Potomac River NERFINISHED ⓘ |
| hasJurisdictionOnOneSide | State of Maryland NERFINISHED ⓘ |
| hasJurisdictionOnOtherSide |
Commonwealth of Pennsylvania
NERFINISHED
ⓘ
Commonwealth of Virginia NERFINISHED ⓘ State of Delaware NERFINISHED ⓘ State of West Virginia NERFINISHED ⓘ |
| hasSegment |
Maryland–Delaware border
NERFINISHED
ⓘ
Maryland–Pennsylvania border NERFINISHED ⓘ Maryland–Virginia border NERFINISHED ⓘ Maryland–West Virginia border NERFINISHED ⓘ |
| legalStatus | interstate boundary ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| partlySurveyedBy |
Charles Mason
NERFINISHED
ⓘ
Jeremiah Dixon NERFINISHED ⓘ |
| partOf | boundary of Maryland ⓘ |
| region |
Mid-Atlantic states
ⓘ
surface form:
Mid-Atlantic United States
|
| separates |
Delaware
NERFINISHED
ⓘ
Maryland NERFINISHED ⓘ Pennsylvania NERFINISHED ⓘ Virginia NERFINISHED ⓘ West Virginia NERFINISHED ⓘ |
| usedFor |
defining state jurisdiction
ⓘ
law enforcement jurisdiction ⓘ taxation boundaries ⓘ |
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: Maryland state line Description of subject: The Maryland state line is the boundary separating the state of Maryland from its neighboring states, including Pennsylvania’s Bedford County.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Delaware–Maryland state line