American League Championship Series
E4237
The American League Championship Series is Major League Baseball’s best-of-seven playoff round that determines the American League pennant winner and World Series participant.
All labels observed (6)
| Label | Occurrences |
|---|---|
| American League Championship Series canonical | 25 |
| American League pennant | 5 |
| ALCS | 2 |
| American League champion | 1 |
| American League championship | 1 |
| League Championship Series | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T49534 — 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: American League Championship Series Context triple: [Red Sox Nation, followsCompetition, American League Championship Series]
-
A.
World Series
The World Series is the annual championship series of Major League Baseball in North America, determining the league's overall champion.
-
B.
American League
The American League is one of the two major professional baseball leagues in Major League Baseball, comprising teams primarily based in the United States and Canada.
-
C.
NCAA Division I Baseball Tournament
The NCAA Division I Baseball Tournament is the annual national championship playoff for top-tier U.S. college baseball teams, culminating in the College World Series.
-
D.
2007 World Series
The 2007 World Series was Major League Baseball’s championship series in which the Boston Red Sox swept the Colorado Rockies in four games to win the title.
-
E.
American League East
The American League East is a Major League Baseball division featuring several prominent East Coast teams and known for some of the sport’s most intense rivalries.
- 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: American League Championship Series Target entity description: The American League Championship Series is Major League Baseball’s best-of-seven playoff round that determines the American League pennant winner and World Series participant.
-
A.
World Series
The World Series is the annual championship series of Major League Baseball in North America, determining the league's overall champion.
-
B.
American League
The American League is one of the two major professional baseball leagues in Major League Baseball, comprising teams primarily based in the United States and Canada.
-
C.
NCAA Division I Baseball Tournament
The NCAA Division I Baseball Tournament is the annual national championship playoff for top-tier U.S. college baseball teams, culminating in the College World Series.
-
D.
2007 World Series
The 2007 World Series was Major League Baseball’s championship series in which the Boston Red Sox swept the Colorado Rockies in four games to win the title.
-
E.
American League East
The American League East is a Major League Baseball division featuring several prominent East Coast teams and known for some of the sport’s most intense rivalries.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Major League Baseball postseason series
ⓘ
best-of-seven playoff series ⓘ |
| alsoKnownAs |
American League Championship Series
ⓘ
surface form:
ALCS
|
| competitionScope | North America ⓘ |
| competitionType | professional sports playoff series ⓘ |
| competitiveLevel | Major League Baseball ⓘ |
| confersTitle | American League champion ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| determines |
American League pennant winner
ⓘ
American League representative in the World Series ⓘ |
| eligibility |
American League Division Series
ⓘ
surface form:
American League postseason qualifiers
|
| followedBy | World Series ⓘ |
| format | best-of-seven ⓘ |
| governingBody |
Commissioner of Baseball
ⓘ
surface form:
Office of the Commissioner of Baseball
|
| hasAudienceType |
in-person spectators
ⓘ
streaming viewers ⓘ television viewers ⓘ |
| hasBroadcastScope |
international television
ⓘ
national television in the United States ⓘ |
| hasEliminationType | best-of-seven series elimination ⓘ |
| hasGameCountMaximum | 7 games ⓘ |
| hasGameCountMinimum | 4 games ⓘ |
| hasGameType | postseason game ⓘ |
| hasHistoricalChange | expanded format after introduction of Division Series ⓘ |
| hasHomeFieldAdvantageRule | teamWithBetterRegularSeasonRecordHostsMoreGames ⓘ |
| hasMediaCoverage | national sports media in the United States ⓘ |
| hasOutcome | series winner advances to World Series ⓘ |
| hasRuleSet |
Official Baseball Rules
ⓘ
surface form:
Major League Baseball rules with postseason modifications
|
| hasScheduling | best-of-seven with travel days ⓘ |
| hasSeedingBasis | regular season record and division titles ⓘ |
| hasStatisticalRecognition | series MVP award ⓘ |
| hasTrophy | American League championship trophy ⓘ |
| inception | 1969 ⓘ |
| isParallelTo | National League Championship Series ⓘ |
| language | English ⓘ |
| league | American League ⓘ |
| location | home ballparks of participating teams ⓘ |
| numberOfTeams | 2 ⓘ |
| organizer | Major League Baseball ⓘ |
| partOf |
MLB playoffs
ⓘ
surface form:
Major League Baseball postseason
|
| playoffRound | league championship round ⓘ |
| precededBy | American League Division Series ⓘ |
| seasonPhase | postseason ⓘ |
| sport | baseball ⓘ |
| temporalCoverage | late October ⓘ |
| usesSeriesLength | best-of-sevenGames ⓘ |
| winnerQualifiesFor | World Series ⓘ |
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: American League Championship Series Description of subject: The American League Championship Series is Major League Baseball’s best-of-seven playoff round that determines the American League pennant winner and World Series participant.
Referenced by (35)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
League Championship Series
this entity surface form:
American League pennant
this entity surface form:
ALCS
this entity surface form:
American League pennant
this entity surface form:
American League champion
this entity surface form:
American League pennant
this entity surface form:
American League pennant
this entity surface form:
ALCS
this entity surface form:
American League pennant
subject surface form:
American League
subject surface form:
American League
subject surface form:
American League Division Series
subject surface form:
American League Division Series
subject surface form:
American League Division Series
subject surface form:
American League Wild Card team
Game 5 of the 2004 American League Championship Series
→
homeLeagueChampionshipSeries
→
American League Championship Series
ⓘ
this entity surface form:
American League championship