National Professional Soccer League (indoor)
E913607
The National Professional Soccer League (indoor) was a U.S.-based professional indoor soccer league that operated primarily in the 1990s, featuring teams from various American cities in an arena-style format.
All labels observed (1)
| Label | Occurrences |
|---|---|
| National Professional Soccer League (indoor) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11245302 — 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: National Professional Soccer League (indoor) Context triple: [Philadelphia KiXX, playedInCompetition, National Professional Soccer League (indoor)]
-
A.
Indoor Football League
The Indoor Football League is a professional indoor American football league in the United States featuring teams that play a faster-paced, arena-style version of the sport.
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B.
Major Indoor Soccer League
The Major Indoor Soccer League was a professional indoor soccer league in North America that operated primarily in the 1980s and early 1990s, featuring fast-paced, high-scoring matches played in hockey-style arenas.
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C.
Pro Soccer League
Pro Soccer League is a professional soccer competition whose clubs participate in national tournaments such as the U.S. Open Cup.
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D.
National Professional Soccer League (1967)
The National Professional Soccer League (1967) was a short-lived U.S. professional soccer league that operated for a single season before merging into the North American Soccer League.
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E.
X-League Indoor Football
X-League Indoor Football was a short-lived professional indoor football league in the United States that featured teams like the Columbus Lions.
- 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: National Professional Soccer League (indoor) Target entity description: The National Professional Soccer League (indoor) was a U.S.-based professional indoor soccer league that operated primarily in the 1990s, featuring teams from various American cities in an arena-style format.
-
A.
Indoor Football League
The Indoor Football League is a professional indoor American football league in the United States featuring teams that play a faster-paced, arena-style version of the sport.
-
B.
Major Indoor Soccer League
The Major Indoor Soccer League was a professional indoor soccer league in North America that operated primarily in the 1980s and early 1990s, featuring fast-paced, high-scoring matches played in hockey-style arenas.
-
C.
Pro Soccer League
Pro Soccer League is a professional soccer competition whose clubs participate in national tournaments such as the U.S. Open Cup.
-
D.
National Professional Soccer League (1967)
The National Professional Soccer League (1967) was a short-lived U.S. professional soccer league that operated for a single season before merging into the North American Soccer League.
-
E.
X-League Indoor Football
X-League Indoor Football was a short-lived professional indoor football league in the United States that featured teams like the Columbus Lions.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
defunct sports league
ⓘ
indoor soccer league ⓘ |
| abbreviation | NPSL NERFINISHED ⓘ |
| alsoKnownAs | NPSL NERFINISHED ⓘ |
| ballType | indoor soccer ball ⓘ |
| competitionFormat | arena-style indoor soccer ⓘ |
| continent | North America ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dissolved | 2001 ⓘ |
| featuredAmericanCities | true GENERATED ⓘ |
| fieldType | artificial turf ⓘ |
| formerlyKnownAs | American Indoor Soccer Association NERFINISHED ⓘ |
| founded | 1984 ⓘ |
| goalType | hockey-style boards and glass ⓘ |
| governingBodyType | independent professional league ⓘ |
| hadBoardedField | true ⓘ |
| hadChampionshipSeries | true ⓘ |
| hadPlayoffs | true ⓘ |
| includedTeamsFrom | United States NERFINISHED ⓘ |
| lastSeason | 2000–01 ⓘ |
| levelOnPyramid | top-level indoor soccer in United States ⓘ |
| mergedInto | Major Indoor Soccer League (2001–2008) NERFINISHED ⓘ |
| notableTeam |
Buffalo Blizzard
NERFINISHED
ⓘ
Cleveland Crunch NERFINISHED ⓘ Detroit Rockers NERFINISHED ⓘ Harrisburg Heat NERFINISHED ⓘ Kansas City Attack NERFINISHED ⓘ Milwaukee Wave NERFINISHED ⓘ St. Louis Ambush NERFINISHED ⓘ Wichita Wings NERFINISHED ⓘ |
| numberOfTeamsAtPeak | 15 ⓘ |
| operatedInDecade |
1980s
ⓘ
1990s ⓘ 2000s ⓘ |
| playedIndoors | true ⓘ |
| playedSeasonDuring | winter months ⓘ |
| primaryCountry | United States NERFINISHED ⓘ |
| professionalStatus | professional ⓘ |
| rebrandedAs | National Professional Soccer League NERFINISHED ⓘ |
| rebrandedFrom | American Indoor Soccer Association NERFINISHED ⓘ |
| rebrandYear | 1990 ⓘ |
| region | North America ⓘ |
| sport | indoor soccer ⓘ |
| status | defunct ⓘ |
| successorLeague | Major Indoor Soccer League (2001–2008) NERFINISHED ⓘ |
| typicalVenueType | indoor arena ⓘ |
| usedMultiPointScoring | true ⓘ |
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: National Professional Soccer League (indoor) Description of subject: The National Professional Soccer League (indoor) was a U.S.-based professional indoor soccer league that operated primarily in the 1990s, featuring teams from various American cities in an arena-style format.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.