Port Preference Clause
E670116
The Port Preference Clause is a constitutional provision that prohibits the federal government from giving preferential treatment to the ports of one state over those of another in regulating commerce.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Port Preference Clause canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7520214 — 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: Port Preference Clause Context triple: [Article I, Section 9 of the United States Constitution, containsClause, Port Preference Clause]
-
A.
Navy Clause
The Navy Clause is the constitutional provision granting Congress the authority to establish and maintain a naval force for the United States.
-
B.
Reception Clause
The Reception Clause is the constitutional provision that empowers the U.S. President to receive foreign ambassadors and other public ministers, forming a key basis for presidential authority over foreign relations and diplomatic recognition.
-
C.
Guarantee Clause
The Guarantee Clause is a provision of the U.S. Constitution that obligates the federal government to ensure every state maintains a republican form of government and protection against invasion and domestic violence.
-
D.
Supremacy Clause
The Supremacy Clause is a provision in the U.S. Constitution that establishes federal law and the Constitution as the highest law of the land, overriding conflicting state laws.
-
E.
Powell Amendment
The Powell Amendment was a legislative proposal introduced by Congressman Adam Clayton Powell Jr. to deny federal funds to institutions that practiced racial discrimination, becoming a key tool in the fight for civil rights in mid-20th-century America.
- 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: Port Preference Clause Target entity description: The Port Preference Clause is a constitutional provision that prohibits the federal government from giving preferential treatment to the ports of one state over those of another in regulating commerce.
-
A.
Navy Clause
The Navy Clause is the constitutional provision granting Congress the authority to establish and maintain a naval force for the United States.
-
B.
Reception Clause
The Reception Clause is the constitutional provision that empowers the U.S. President to receive foreign ambassadors and other public ministers, forming a key basis for presidential authority over foreign relations and diplomatic recognition.
-
C.
Guarantee Clause
The Guarantee Clause is a provision of the U.S. Constitution that obligates the federal government to ensure every state maintains a republican form of government and protection against invasion and domestic violence.
-
D.
Supremacy Clause
The Supremacy Clause is a provision in the U.S. Constitution that establishes federal law and the Constitution as the highest law of the land, overriding conflicting state laws.
-
E.
Powell Amendment
The Powell Amendment was a legislative proposal introduced by Congressman Adam Clayton Powell Jr. to deny federal funds to institutions that practiced racial discrimination, becoming a key tool in the fight for civil rights in mid-20th-century America.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
constitutional clause
ⓘ
provision of the United States Constitution ⓘ |
| aimsTo |
prevent discrimination among state ports
ⓘ
promote equality among states in access to commerce ⓘ |
| appliesOnlyTo |
actions of the federal government and not private parties
ⓘ
actions of the federal government and not state governments ⓘ |
| appliesTo |
ports of the several states
ⓘ
regulations of commerce ⓘ regulations of revenue ⓘ |
| binds |
Congress
ⓘ
linked to:
United States Congress
federal government ⓘ |
| cameIntoForceOn | 1789 ⓘ |
| concerns | distributional effects of federal commercial regulation among states ⓘ |
| hasBeenInterpretedBy | Supreme Court of the United States ⓘ |
| historicalContext | concerns between large and small states over commercial advantages ⓘ |
| isAlsoKnownAs | Port Preference Provision ⓘ |
| isCitedIn |
cases involving federal navigation and shipping laws
ⓘ
constitutional law treatises on the Commerce Clause ⓘ |
| isDistinguishedFrom | state-level port regulation provisions ⓘ |
| isFoundIn | Article I, Section 9, Clause 6 of the United States Constitution ⓘ |
| isInvokedIn |
challenges to federal statutes affecting port access
ⓘ
challenges to federal statutes affecting shipping routes ⓘ |
| isLocatedInTextOf | Article I, Section 9 of the United States Constitution ⓘ |
| isPartOf |
Article I of the United States Constitution
ⓘ
United States Constitution ⓘ |
| isRelatedTo |
Commerce Clause
ⓘ
Taxing and Spending Clause ⓘ Tonnage Clause ⓘ |
| jurisdiction | federal constitutional law of the United States ⓘ |
| legalEffect |
does not forbid all incidental advantages to some ports
ⓘ
forbids intentional and direct preferences among state ports ⓘ |
| limits | powers of Congress under the Commerce Clause ⓘ |
| prohibits |
federal laws that explicitly favor ports of one state
ⓘ
preference to the ports of one state over those of another ⓘ |
| protects | states from discriminatory federal port regulations ⓘ |
| regulates | federal treatment of state ports ⓘ |
| relatesTo |
interstate commerce
ⓘ
maritime commerce ⓘ regulation of commerce ⓘ |
| textBeginsWith | "No Preference shall be given by any Regulation of Commerce or Revenue to the Ports of one State over those of another" ⓘ |
| underlies | principle of geographic neutrality in federal port regulation ⓘ |
| wasAdoptedIn | 1787 ⓘ |
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: Port Preference Clause Description of subject: The Port Preference Clause is a constitutional provision that prohibits the federal government from giving preferential treatment to the ports of one state over those of another in regulating commerce.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.