Seimon Ishibashi
E631512
Seimon Ishibashi is a historic stone bridge at the main entrance to Tokyo’s Imperial Palace, often photographed alongside the adjacent Nijūbashi Bridge.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seimon Ishibashi canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3627610 — 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: Seimon Ishibashi Context triple: [Nijūbashi Bridge, hasPart, Seimon Ishibashi]
-
A.
Shojiro Ishibashi
Shojiro Ishibashi was a Japanese entrepreneur best known as the founder of Bridgestone, one of the world’s largest tire and rubber companies.
-
B.
Yūsaku Kamekura
Yūsaku Kamekura was a pioneering Japanese graphic designer renowned for his modernist posters and visual identities, including iconic work for the 1964 Tokyo Olympics.
-
C.
Masaru Ibuka
Masaru Ibuka was a Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a pioneer of Japan’s postwar consumer electronics industry.
-
D.
Yosuke Kubozuka
Yosuke Kubozuka is a Japanese actor and former model known for his intense, unconventional performances in film and television, including prominent roles in works like "Go" and "Silence."
-
E.
Ōyama Iwao
Ōyama Iwao was a prominent Meiji-era Japanese field marshal and statesman who played key leadership roles in Japan’s early modern wars and military modernization.
- 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: Seimon Ishibashi Target entity description: Seimon Ishibashi is a historic stone bridge at the main entrance to Tokyo’s Imperial Palace, often photographed alongside the adjacent Nijūbashi Bridge.
-
A.
Shojiro Ishibashi
Shojiro Ishibashi was a Japanese entrepreneur best known as the founder of Bridgestone, one of the world’s largest tire and rubber companies.
-
B.
Yūsaku Kamekura
Yūsaku Kamekura was a pioneering Japanese graphic designer renowned for his modernist posters and visual identities, including iconic work for the 1964 Tokyo Olympics.
-
C.
Masaru Ibuka
Masaru Ibuka was a Japanese electronics engineer and entrepreneur best known as the co-founder of Sony Corporation and a pioneer of Japan’s postwar consumer electronics industry.
-
D.
Yosuke Kubozuka
Yosuke Kubozuka is a Japanese actor and former model known for his intense, unconventional performances in film and television, including prominent roles in works like "Go" and "Silence."
-
E.
Ōyama Iwao
Ōyama Iwao was a prominent Meiji-era Japanese field marshal and statesman who played key leadership roles in Japan’s early modern wars and military modernization.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
historic bridge
ⓘ
stone bridge ⓘ |
| adjacentTo | Nijūbashi Bridge ⓘ |
| architecturalStyle | stone arch bridge ⓘ |
| associatedWith |
Japanese Imperial Family
ⓘ
linked to:
Imperial House of Japan
|
| country | Japan ⓘ |
| crosses | moat of the Tokyo Imperial Palace ⓘ |
| givesAccessTo |
Imperial Palace main gate area
ⓘ
linked to:
Imperial Palace grounds
|
| hasFunction | bridge over palace moat ⓘ |
| hasJapaneseName | 正門石橋 ⓘ |
| hasPhotographicSignificance | popular photo spot for Tokyo Imperial Palace ⓘ |
| hasViewOf |
Fushimi-yagura (Imperial Palace watchtower)
ⓘ
linked to:
Fushimi-yagura (turret)
|
| heritageStatus | not generally open for public crossing except on special days ⓘ |
| locatedAt | main entrance of the Tokyo Imperial Palace ⓘ |
| locatedIn |
Chiyoda, Tokyo
ⓘ
Japan ⓘ Tokyo ⓘ |
| material | stone ⓘ |
| nameMeaning | Main Gate Stone Bridge ⓘ |
| near |
Imperial Palace Plaza
ⓘ
linked to:
Imperial Palace grounds
Nijūbashi ⓘ |
| ownedBy | Imperial Household Agency ⓘ |
| partOf | Tokyo Imperial Palace grounds ⓘ |
| touristAttraction | Tokyo ⓘ |
| usedFor | pedestrian access during special occasions ⓘ |
| visibleFrom |
Kokyo Gaien (Outer Garden of the Imperial Palace)
ⓘ
linked to:
Kokyo Gaien National Garden
|
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: Seimon Ishibashi Description of subject: Seimon Ishibashi is a historic stone bridge at the main entrance to Tokyo’s Imperial Palace, often photographed alongside the adjacent Nijūbashi Bridge.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.