Alfonso Lopez, Jr.
E57170
Alfonso Lopez, Jr. is the high school student whose challenge to a federal gun-possession law led to the landmark 1995 U.S. Supreme Court case United States v. Lopez, which limited Congress’s power under the Commerce Clause.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Alfonso Lopez Jr. | 1 |
| Alfonso Lopez, Jr. canonical | 1 |
| Alfonso Ramon Lopez | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T446396 — 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: Alfonso Lopez, Jr. Context triple: [United States v. Lopez, respondent, Alfonso Lopez, Jr.]
-
A.
Alfonso Salmerón
Alfonso Salmerón was a 16th-century Spanish Jesuit priest and theologian who was one of the original companions of Ignatius of Loyola and a co-founder of the Society of Jesus.
-
B.
Francisco González Bocanegra
Francisco González Bocanegra was a 19th-century Mexican poet best known for writing the lyrics of Mexico’s national anthem.
-
C.
Raúl Cárdenas
Raúl Cárdenas was a prominent Mexican football manager best known for leading Club América to multiple league titles during the 1960s and 1970s.
-
D.
Francisco Javier Venegas
Francisco Javier Venegas was a Spanish military officer and colonial administrator who served as viceroy of New Spain and led royalist forces against insurgents during the early stages of the Mexican War of Independence.
-
E.
Cruz Bustamante
Cruz Bustamante is an American Democratic politician who served as California’s first Latino lieutenant governor in over a century.
- 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: Alfonso Lopez, Jr. Target entity description: Alfonso Lopez, Jr. is the high school student whose challenge to a federal gun-possession law led to the landmark 1995 U.S. Supreme Court case United States v. Lopez, which limited Congress’s power under the Commerce Clause.
-
A.
Alfonso Salmerón
Alfonso Salmerón was a 16th-century Spanish Jesuit priest and theologian who was one of the original companions of Ignatius of Loyola and a co-founder of the Society of Jesus.
-
B.
Francisco González Bocanegra
Francisco González Bocanegra was a 19th-century Mexican poet best known for writing the lyrics of Mexico’s national anthem.
-
C.
Raúl Cárdenas
Raúl Cárdenas was a prominent Mexican football manager best known for leading Club América to multiple league titles during the 1960s and 1970s.
-
D.
Francisco Javier Venegas
Francisco Javier Venegas was a Spanish military officer and colonial administrator who served as viceroy of New Spain and led royalist forces against insurgents during the early stages of the Mexican War of Independence.
-
E.
Cruz Bustamante
Cruz Bustamante is an American Democratic politician who served as California’s first Latino lieutenant governor in over a century.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
high school student
ⓘ
person ⓘ |
| allegedConduct | brought a concealed handgun to his high school ⓘ |
| areaOfLaw |
constitutional law
ⓘ
criminal law ⓘ federalism ⓘ |
| associatedCourt | Supreme Court of the United States ⓘ |
| associatedJurisdiction |
United States federal courts
ⓘ
linked to:
federal judiciary of the United States
|
| associatedWith | Gun-Free School Zones Act litigation ⓘ |
| caseCitation |
United States v. Lopez, 514 U.S. 549 (1995)
ⓘ
linked to:
United States v. Lopez
|
| caseDecisionYear | 1995 ⓘ |
| caseEscalatedTo |
Supreme Court of the United States
ⓘ
United States Court of Appeals for the Fifth Circuit ⓘ |
| caseOutcomeForLaw | Gun-Free School Zones Act of 1990 held unconstitutional as exceeding Commerce Clause power ⓘ |
| caseType |
constitutional challenge to federal statute
ⓘ
federal criminal prosecution ⓘ |
| challenged | Gun-Free School Zones Act of 1990 ⓘ |
| chargedUnder | Gun-Free School Zones Act of 1990 ⓘ |
| constitutionalProvisionInvolved |
Article I, Section 8, Clause 3 of the U.S. Constitution
ⓘ
Commerce Clause of the U.S. Constitution ⓘ
linked to:
Commerce Clause
|
| countryOfCitizenship | United States of America ⓘ |
| educationContext | attended a public high school in Texas ⓘ |
| historicalSignificance | central figure in first case in decades to limit Congress’s Commerce Clause authority ⓘ |
| influenced |
cases limiting federal criminal jurisdiction based on Commerce Clause
ⓘ
subsequent Commerce Clause jurisprudence ⓘ |
| legalDoctrineImpacted |
congressional power to regulate non-economic activity
ⓘ
substantial effects test under the Commerce Clause ⓘ |
| legalIssueRaised |
limits on congressional power under the Commerce Clause
ⓘ
scope of the Commerce Clause ⓘ |
| legalStatusAfterSupremeCourt | Supreme Court affirmed reversal of conviction ⓘ |
| legalStatusInCase | conviction initially obtained in federal district court ⓘ |
| legalStatusOnAppeal | conviction reversed by the Fifth Circuit Court of Appeals ⓘ |
| levelOfCourtFirstHeard | federal district court ⓘ |
| mentionedIn |
constitutional law casebooks
ⓘ
federal courts and jurisdiction casebooks ⓘ |
| notableFor | being the respondent in United States v. Lopez ⓘ |
| occupation | student ⓘ |
| partyTo | United States v. Lopez ⓘ |
| placeOfActivity |
San Antonio, Texas
ⓘ
linked to:
San Antonio
|
| roleInCase | respondent ⓘ |
| timePeriodOfNotability | early 1990s ⓘ |
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: Alfonso Lopez, Jr. Description of subject: Alfonso Lopez, Jr. is the high school student whose challenge to a federal gun-possession law led to the landmark 1995 U.S. Supreme Court case United States v. Lopez, which limited Congress’s power under the Commerce Clause.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Alfonso Lopez, Jr.