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.

Try in SPARQL Jump to: Surface forms Statements Referenced by

All labels observed (2)

Label Occurrences
Alfonso Lopez Jr. 1
Alfonso Lopez, Jr. canonical 1

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 federal judiciary of the United States
surface form: United States federal courts
associatedWith Gun-Free School Zones Act of 1990, 18 U.S.C. § 922(q)
surface form: Gun-Free School Zones Act litigation
caseCitation United States v. Lopez
surface form: United States v. Lopez, 514 U.S. 549 (1995)
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, 18 U.S.C. § 922(q)
surface form: Gun-Free School Zones Act of 1990
chargedUnder Gun-Free School Zones Act of 1990, 18 U.S.C. § 922(q)
surface form: Gun-Free School Zones Act of 1990
constitutionalProvisionInvolved Article I, Section 8, Clause 3 of the United States Constitution
surface form: Article I, Section 8, Clause 3 of the U.S. Constitution

Commerce Clause
surface form: Commerce Clause of the U.S. Constitution
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
surface form: San Antonio, Texas
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 (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

United States v. Lopez respondent Alfonso Lopez, Jr.
Supreme Court affirmed reversal of conviction involvesPerson Alfonso Lopez, Jr.
this entity surface form: Alfonso Lopez Jr.