Atlantic League of Professional Baseball
E249996
The Atlantic League of Professional Baseball is an independent professional baseball league in the United States that operates outside Major League Baseball’s farm system but is recognized for testing experimental rules in partnership with MLB.
All labels observed (8)
How this entity was disambiguated
This entity first appeared as the object of triple T2268795 — 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: Atlantic League of Professional Baseball Context triple: [York, Pennsylvania, sportsLeague, Atlantic League of Professional Baseball]
-
A.
California League
The California League is a Minor League Baseball circuit that operates as a Class A league for Major League Baseball farm teams in California.
-
B.
Midwest League
The Midwest League is a Minor League Baseball circuit in the United States that features Class A affiliates of Major League Baseball teams, primarily located in the Midwestern states.
-
C.
South Atlantic League
The South Atlantic League is a Minor League Baseball league in the United States that features Class A teams primarily from the southeastern region.
-
D.
Eastern League
The Eastern League is a Double-A level Minor League Baseball league in the United States that has long served as a key developmental circuit for Major League Baseball prospects.
-
E.
Florida State League
The Florida State League is a long-standing Class A Minor League Baseball circuit in Florida featuring teams affiliated with Major League Baseball organizations.
- 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: Atlantic League of Professional Baseball Target entity description: The Atlantic League of Professional Baseball is an independent professional baseball league in the United States that operates outside Major League Baseball’s farm system but is recognized for testing experimental rules in partnership with MLB.
-
A.
California League
The California League is a Minor League Baseball circuit that operates as a Class A league for Major League Baseball farm teams in California.
-
B.
Midwest League
The Midwest League is a Minor League Baseball circuit in the United States that features Class A affiliates of Major League Baseball teams, primarily located in the Midwestern states.
-
C.
South Atlantic League
The South Atlantic League is a Minor League Baseball league in the United States that features Class A teams primarily from the southeastern region.
-
D.
Eastern League
The Eastern League is a Double-A level Minor League Baseball league in the United States that has long served as a key developmental circuit for Major League Baseball prospects.
-
E.
Florida State League
The Florida State League is a long-standing Class A Minor League Baseball circuit in Florida featuring teams affiliated with Major League Baseball organizations.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
independent baseball league
ⓘ
professional baseball league ⓘ |
| abbreviation | ALPB ⓘ |
| competitionFormat | professional ⓘ |
| competitionType | league ⓘ |
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| founded | 1998 ⓘ |
| founder | Frank Boulton ⓘ |
| gameLevel | high-level professional baseball ⓘ |
| governingBody |
Atlantic League of Professional Baseball, LLC
ⓘ
linked to:
Atlantic League of Professional Baseball
|
| hasGender | men ⓘ |
| hasGeographicFocus |
Mid-Atlantic United States
ⓘ
linked to:
Mid-Atlantic states
Northeastern United States ⓘ |
| hasGoverningStructure | league president and league office ⓘ |
| hasMediaCoverage | regional sports media in the United States ⓘ |
| hasNotableAlumni | players who advanced to Major League Baseball ⓘ |
| hasNumberOfTeams | varies by season ⓘ |
| hasOfficialWebsite | https://www.atlanticleague.com/ ⓘ |
| hasPartnershipWith | Major League Baseball ⓘ |
| hasRuleInnovationRole | testing ground for MLB rules ⓘ |
| hasRuleSetBase | Official Baseball Rules ⓘ |
| hasTeamType | independent professional baseball team ⓘ |
| headquartersLocation |
United States
ⓘ
linked to:
United States of America
|
| inception | 1998 ⓘ |
| isAffiliatedWithMLBFarmSystem | false ⓘ |
| isMemberOf | independent professional baseball structure in North America ⓘ |
| isOutsideFarmSystemOf | Major League Baseball ⓘ |
| isProfessional | true ⓘ |
| languageOfWorkOrName | English ⓘ |
| leagueLevel | independent ⓘ |
| playsInSeason | summer ⓘ |
| primaryPurpose | professional baseball competition ⓘ |
| recognizedBy | Major League Baseball ⓘ |
| regionServed |
Eastern United States
ⓘ
Mid-Atlantic United States ⓘ
linked to:
Mid-Atlantic states
|
| ruleExperimentExamples |
automated ball-strike system
ⓘ
larger bases ⓘ mound distance changes ⓘ restrictions on defensive shifts ⓘ time limits between pitches ⓘ |
| secondaryPurpose | testing experimental baseball rules ⓘ |
| sport | baseball ⓘ |
| typicalPlayerBackground |
former Major League players
ⓘ
former Minor League players ⓘ undrafted free agents ⓘ |
| usesExperimentalRulesFrom | Major League Baseball ⓘ |
| usesModifiedRulesFrom | Official Baseball Rules ⓘ |
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: Atlantic League of Professional Baseball Description of subject: The Atlantic League of Professional Baseball is an independent professional baseball league in the United States that operates outside Major League Baseball’s farm system but is recognized for testing experimental rules in partnership with MLB.
Referenced by (57)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
York, Pennsylvania, United States
subject linked to:
Truist Point
subject linked to:
Campbell’s Field (former)
Atlantic League of Professional Baseball
→
governingBody
→
Atlantic League of Professional Baseball, LLC
ⓘ
linked to: Atlantic League of Professional Baseball
subject linked to:
Fairfield Properties Ballpark
linked to: Atlantic League of Professional Baseball
linked to: Atlantic League of Professional Baseball
linked to: Atlantic League of Professional Baseball
linked to: Atlantic League of Professional Baseball
subject linked to:
WellSpan Park
linked to: Atlantic League of Professional Baseball
linked to: Atlantic League of Professional Baseball
subject linked to:
Campbell’s Field (ballpark)
linked to: Atlantic League of Professional Baseball
subject linked to:
FerryHawks
subject linked to:
FerryHawks
linked to: Atlantic League of Professional Baseball