Maryland–Virginia maritime boundary
E777621
The Maryland–Virginia maritime boundary is the legally defined water border separating the two states’ jurisdictions in the Chesapeake Bay and adjacent coastal waters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Maryland–Virginia maritime boundary canonical | 1 |
| Virginia–Maryland water boundary | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9089954 — 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–Virginia maritime boundary Context triple: [Worcester County, Maryland, adjacentTo, Maryland–Virginia maritime boundary]
-
A.
United States–Russia maritime boundary
The United States–Russia maritime boundary is the international sea border in the Bering Strait and surrounding waters that divides the territorial and exclusive economic zones of the United States and Russia.
-
B.
U.S. contiguous zone
The U.S. contiguous zone is a band of ocean adjacent to U.S. territorial waters where the United States exercises limited control to prevent and punish infringements of its customs, fiscal, immigration, and sanitary laws.
-
C.
United States–Mexico maritime boundary (Pacific Ocean)
The United States–Mexico maritime boundary in the Pacific Ocean is the internationally recognized sea border that separates the territorial waters and exclusive economic zones of the United States and Mexico off their Pacific coasts.
-
D.
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.
-
E.
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.
- 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–Virginia maritime boundary Target entity description: The Maryland–Virginia maritime boundary is the legally defined water border separating the two states’ jurisdictions in the Chesapeake Bay and adjacent coastal waters.
-
A.
United States–Russia maritime boundary
The United States–Russia maritime boundary is the international sea border in the Bering Strait and surrounding waters that divides the territorial and exclusive economic zones of the United States and Russia.
-
B.
U.S. contiguous zone
The U.S. contiguous zone is a band of ocean adjacent to U.S. territorial waters where the United States exercises limited control to prevent and punish infringements of its customs, fiscal, immigration, and sanitary laws.
-
C.
United States–Mexico maritime boundary (Pacific Ocean)
The United States–Mexico maritime boundary in the Pacific Ocean is the internationally recognized sea border that separates the territorial waters and exclusive economic zones of the United States and Mexico off their Pacific coasts.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
interstate boundary
ⓘ
maritime boundary ⓘ |
| adjacentTo |
Atlantic Ocean
ⓘ
Eastern Shore of Maryland ⓘ Eastern Shore of Virginia ⓘ |
| basisInDocument |
Black–Jenkins Award of 1877
ⓘ
Compact of 1785 ⓘ
linked to:
Mount Vernon Compact of 1785
U.S. Supreme Court decisions on Virginia v. Maryland ⓘ |
| clarifiedBy | 20th-century court decisions ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| definesJurisdiction |
Commonwealth of Virginia
ⓘ
State of Maryland ⓘ
linked to:
Maryland
|
| establishesRightsOver |
fisheries in Chesapeake Bay
ⓘ
submerged lands ⓘ water resources ⓘ |
| follows |
adjacent coastal waters of the Atlantic Ocean
ⓘ
portions of the Chesapeake Bay ⓘ |
| governs | state-level law enforcement jurisdiction on the water ⓘ |
| hasComponent | lines and arcs defined by specific coordinates ⓘ |
| hasHistoricalOrigin | colonial-era charters of Maryland and Virginia ⓘ |
| hasLegalNature | interstate compact boundary ⓘ |
| historicallyDisputedBy |
Maryland
ⓘ
Virginia ⓘ |
| languageOfOfficialDescription | English ⓘ |
| locatedIn |
Chesapeake Bay
ⓘ
United States ⓘ
linked to:
United States of America
|
| partOf | Maryland–Virginia state line ⓘ |
| relatedTo |
Delmarva Peninsula
ⓘ
Potomac River boundary ⓘ |
| separates |
Maryland
ⓘ
Virginia ⓘ |
| subjectOf | Virginia v. Maryland ⓘ |
| usedFor |
allocation of regulatory authority over environmental protection
ⓘ
allocation of regulatory authority over navigation ⓘ allocation of regulatory authority over resource extraction ⓘ |
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–Virginia maritime boundary Description of subject: The Maryland–Virginia maritime boundary is the legally defined water border separating the two states’ jurisdictions in the Chesapeake Bay and adjacent coastal waters.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Maryland–Virginia maritime boundary