Seibu Dome
E625923
Seibu Dome is a partially enclosed baseball stadium in Tokorozawa, Saitama, Japan, best known as the longtime home field of the Saitama Seibu Lions of Nippon Professional Baseball.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seibu Dome canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6883874 — 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: Seibu Dome Context triple: [Saitama Seibu Lions, homeStadiumFormerName, Seibu Dome]
-
A.
Nagoya Dome
Nagoya Dome is a large indoor baseball stadium in Nagoya, Japan, best known as the home field of the Chunichi Dragons and a major venue for professional and international baseball games.
-
B.
Korakuen Stadium
Korakuen Stadium was a historic baseball and multi-purpose sports venue in Tokyo, Japan, that served as the longtime home of the Yomiuri Giants before its demolition.
-
C.
Sapporo Dome
Sapporo Dome is a multi-purpose stadium in Sapporo, Japan, best known for hosting baseball and football matches as well as major international sporting events.
-
D.
Onikan Stadium
Onikan Stadium is a historic multi-purpose sports arena located on Lagos Island in Lagos, Nigeria.
-
E.
Yokohama Stadium
Yokohama Stadium is a prominent baseball and multi-purpose sports venue in Yokohama, Japan, best known as the home field of the Yokohama DeNA BayStars and a host of major international events.
- 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: Seibu Dome Target entity description: Seibu Dome is a partially enclosed baseball stadium in Tokorozawa, Saitama, Japan, best known as the longtime home field of the Saitama Seibu Lions of Nippon Professional Baseball.
-
A.
Nagoya Dome
Nagoya Dome is a large indoor baseball stadium in Nagoya, Japan, best known as the home field of the Chunichi Dragons and a major venue for professional and international baseball games.
-
B.
Korakuen Stadium
Korakuen Stadium was a historic baseball and multi-purpose sports venue in Tokyo, Japan, that served as the longtime home of the Yomiuri Giants before its demolition.
-
C.
Sapporo Dome
Sapporo Dome is a multi-purpose stadium in Sapporo, Japan, best known for hosting baseball and football matches as well as major international sporting events.
-
D.
Onikan Stadium
Onikan Stadium is a historic multi-purpose sports arena located on Lagos Island in Lagos, Nigeria.
-
E.
Yokohama Stadium
Yokohama Stadium is a prominent baseball and multi-purpose sports venue in Yokohama, Japan, best known as the home field of the Yokohama DeNA BayStars and a host of major international events.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | baseball stadium ⓘ |
| climateControl | non-air-conditioned ⓘ |
| country | Japan ⓘ |
| designFeature | open sides beneath roof ⓘ |
| fieldShape | asymmetrical outfield ⓘ |
| formerName | Seibu Lions Stadium NERFINISHED ⓘ |
| hasBullpens | yes ⓘ |
| hasConcessions | yes ⓘ |
| hasDugouts | yes ⓘ |
| hasHomeTeam | Saitama Seibu Lions NERFINISHED ⓘ |
| hasInfieldStands | yes ⓘ |
| hasLighting | night-game capable ⓘ |
| hasOutfieldStands | yes ⓘ |
| hasRestrooms | yes ⓘ |
| hasRoof | fixed roof ⓘ |
| hasScoreboard | yes ⓘ |
| hasTeamStore | yes ⓘ |
| league |
Nippon Professional Baseball
NERFINISHED
ⓘ
Pacific League NERFINISHED ⓘ |
| locatedIn |
Greater Tokyo Area
NERFINISHED
ⓘ
Honshu ⓘ Kantō region ⓘ Saitama Prefecture NERFINISHED ⓘ Tokorozawa, Saitama Prefecture NERFINISHED ⓘ |
| near | MetLife Dome complex NERFINISHED ⓘ |
| notableEventType |
Nippon Professional Baseball postseason games
ⓘ
Nippon Professional Baseball regular season games ⓘ |
| notableFor | being home field of Saitama Seibu Lions ⓘ |
| opened | 1979 ⓘ |
| operator | Seibu Lions NERFINISHED ⓘ |
| owner | Seibu Railway NERFINISHED ⓘ |
| partiallyEnclosed | true ⓘ |
| primaryUse | baseball ⓘ |
| publicTransit | Seibu Kyūjō-mae Station NERFINISHED ⓘ |
| railwayLine |
Seibu Sayama Line
NERFINISHED
ⓘ
Seibu Yamaguchi Line NERFINISHED ⓘ |
| region | East Japan NERFINISHED ⓘ |
| renovated | 1999 ⓘ |
| roofType | dome roof ⓘ |
| safetyFeature | protective netting behind home plate ⓘ |
| seatingType | all-seater ⓘ |
| sport | baseball ⓘ |
| surface | artificial turf ⓘ |
| tenant | Saitama Seibu Lions NERFINISHED ⓘ |
| usedFor |
concerts
ⓘ
other sporting events ⓘ professional baseball games ⓘ |
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: Seibu Dome Description of subject: Seibu Dome is a partially enclosed baseball stadium in Tokorozawa, Saitama, Japan, best known as the longtime home field of the Saitama Seibu Lions of Nippon Professional Baseball.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.