Service Employees International Union Local 99
E517601
Service Employees International Union Local 99 is a labor union representing education support staff and other service workers, particularly within the Los Angeles Unified School District.
All labels observed (2)
| Label | Occurrences |
|---|---|
| SEIU Local 99 | 1 |
| Service Employees International Union Local 99 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5390807 — 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: Service Employees International Union Local 99 Context triple: [Los Angeles Unified School District, hasLaborUnion, Service Employees International Union Local 99]
-
A.
AFL–CIO
The AFL–CIO is the largest federation of labor unions in the United States, formed by the merger of major labor organizations and representing millions of workers across diverse industries.
-
B.
AFSCME Local 1733
AFSCME Local 1733 is the Memphis municipal workers’ union best known for leading the 1968 sanitation workers’ strike that became a landmark event in the civil rights and labor movements.
-
C.
Communication Workers Union
The Communication Workers Union is a major British trade union representing employees in postal, telecommunications, and related industries.
-
D.
International Ladies' Garment Workers' Union
The International Ladies' Garment Workers' Union was a major American labor union that represented workers in the women's clothing industry and became known for its role in improving labor conditions and advocating for social justice in the 20th century.
-
E.
United Steelworkers of America
The United Steelworkers of America is a major North American labor union representing workers primarily in the steel, manufacturing, and related industries.
- 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: Service Employees International Union Local 99 Target entity description: Service Employees International Union Local 99 is a labor union representing education support staff and other service workers, particularly within the Los Angeles Unified School District.
-
A.
AFL–CIO
The AFL–CIO is the largest federation of labor unions in the United States, formed by the merger of major labor organizations and representing millions of workers across diverse industries.
-
B.
AFSCME Local 1733
AFSCME Local 1733 is the Memphis municipal workers’ union best known for leading the 1968 sanitation workers’ strike that became a landmark event in the civil rights and labor movements.
-
C.
Communication Workers Union
The Communication Workers Union is a major British trade union representing employees in postal, telecommunications, and related industries.
-
D.
International Ladies' Garment Workers' Union
The International Ladies' Garment Workers' Union was a major American labor union that represented workers in the women's clothing industry and became known for its role in improving labor conditions and advocating for social justice in the 20th century.
-
E.
United Steelworkers of America
The United Steelworkers of America is a major North American labor union representing workers primarily in the steel, manufacturing, and related industries.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
labor union
ⓘ
trade union local ⓘ |
| abbreviation | SEIU Local 99 ⓘ |
| affiliation | AFL–CIO ⓘ |
| country | United States of America ⓘ |
| focus |
K–12 education workforce
ⓘ
equity for low-wage school workers ⓘ |
| hasActivity |
conducting strikes and work actions
ⓘ
member training and education ⓘ negotiating collective bargaining agreements ⓘ organizing school support staff ⓘ |
| hasMemberType |
classified school employees
ⓘ
low-wage service workers ⓘ part-time school workers ⓘ |
| industry |
public education
ⓘ
public sector services ⓘ |
| languageOfWork |
English
ⓘ
Spanish ⓘ |
| locatedIn | Los Angeles, California ⓘ |
| parentOrganization | Service Employees International Union ⓘ |
| politicalActivity |
advocacy for public education funding
ⓘ
support for pro-labor candidates ⓘ |
| primaryJurisdiction | Los Angeles Unified School District ⓘ |
| purpose |
collective bargaining
ⓘ
improving wages and benefits ⓘ improving working conditions ⓘ worker representation ⓘ |
| regionServed |
Los Angeles County
ⓘ
Southern California ⓘ |
| represents |
bus drivers
ⓘ
cafeteria workers ⓘ education support staff ⓘ other school support staff ⓘ school custodians ⓘ special education assistants ⓘ teacher aides ⓘ |
| sector | education ⓘ |
| website | https://www.seiu99.org/ ⓘ |
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: Service Employees International Union Local 99 Description of subject: Service Employees International Union Local 99 is a labor union representing education support staff and other service workers, particularly within the Los Angeles Unified School District.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Los Angeles Unified School District
→
hasLaborUnion
→
Service Employees International Union Local 99
ⓘ
linked to: Service Employees International Union Local 99