Sakamoto Ryoma
E1025427
Sakamoto Ryoma was a key samurai reformer and political leader who helped overthrow the Tokugawa shogunate and pave the way for Japan’s Meiji Restoration.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sakamoto Ryoma canonical | 2 |
| Sakamoto Ryōma | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13167921 — 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: Sakamoto Ryoma Context triple: [Tosa Domain, notableFigure, Sakamoto Ryoma]
-
A.
Takasugi Shinsaku
Takasugi Shinsaku was a key late-Edo period samurai and political reformer who helped drive the Meiji Restoration by modernizing military forces and leading anti-shogunate activities.
-
B.
Sakakibara Shōzō
Sakakibara Shōzō was an Imperial Japanese Army general who served as a senior military commander during World War II, including in the Pacific theater.
-
C.
Kusaka Genzui
Kusaka Genzui was a prominent late-Edo period samurai and political activist from the Chōshū Domain who played a key role in the sonnō jōi (Revere the Emperor, Expel the Barbarians) movement leading up to the Meiji Restoration.
-
D.
Andō Rikichi
Andō Rikichi was a Japanese military officer and colonial administrator who served in prominent leadership roles in Taiwan during the period of Japanese rule.
-
E.
Kuroda Kiyotaka
Kuroda Kiyotaka was a Meiji-era Japanese statesman and former samurai who served as the second Prime Minister of Japan and played a key role in the early development of Hokkaido.
- 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: Sakamoto Ryoma Target entity description: Sakamoto Ryoma was a key samurai reformer and political leader who helped overthrow the Tokugawa shogunate and pave the way for Japan’s Meiji Restoration.
-
A.
Takasugi Shinsaku
Takasugi Shinsaku was a key late-Edo period samurai and political reformer who helped drive the Meiji Restoration by modernizing military forces and leading anti-shogunate activities.
-
B.
Sakakibara Shōzō
Sakakibara Shōzō was an Imperial Japanese Army general who served as a senior military commander during World War II, including in the Pacific theater.
-
C.
Kusaka Genzui
Kusaka Genzui was a prominent late-Edo period samurai and political activist from the Chōshū Domain who played a key role in the sonnō jōi (Revere the Emperor, Expel the Barbarians) movement leading up to the Meiji Restoration.
-
D.
Andō Rikichi
Andō Rikichi was a Japanese military officer and colonial administrator who served in prominent leadership roles in Taiwan during the period of Japanese rule.
-
E.
Kuroda Kiyotaka
Kuroda Kiyotaka was a Meiji-era Japanese statesman and former samurai who served as the second Prime Minister of Japan and played a key role in the early development of Hokkaido.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Japanese nationalist
ⓘ
Meiji Restoration figure ⓘ human ⓘ political reformer ⓘ samurai ⓘ |
| advocated |
a parliamentary system of government
ⓘ
a written constitution for Japan ⓘ establishment of a modern navy ⓘ modernization of Japan ⓘ opening Japan to international trade ⓘ |
| allegiance |
Imperial cause
ⓘ
Tosa Domain NERFINISHED ⓘ |
| associatedWith |
Choshu Domain
NERFINISHED
ⓘ
Satsuma Domain NERFINISHED ⓘ Tosa Loyalist Party NERFINISHED ⓘ |
| birthCountry | Japan NERFINISHED ⓘ |
| birthDate | 1836-01-03 ⓘ |
| birthPlace |
Kochi
NERFINISHED
ⓘ
Shikoku NERFINISHED ⓘ Tosa Domain NERFINISHED ⓘ |
| causeOfDeath | assassination ⓘ |
| deathCountry | Japan NERFINISHED ⓘ |
| deathDate | 1867-12-10 ⓘ |
| deathPlace | Kyoto NERFINISHED ⓘ |
| domainOfOrigin | Tosa Domain NERFINISHED ⓘ |
| era |
Bakumatsu
NERFINISHED
ⓘ
late Edo period ⓘ |
| familyName | Sakamoto NERFINISHED ⓘ |
| founded |
Kaientai
NERFINISHED
ⓘ
Kameyama Shachu NERFINISHED ⓘ |
| gender | male ⓘ |
| givenName | Ryoma NERFINISHED ⓘ |
| influenced |
Meiji government reforms
NERFINISHED
ⓘ
modern Japanese nationalism ⓘ |
| knownFor |
contributions to the Meiji Restoration
ⓘ
founding Japan’s first modern corporation-like trading company ⓘ mediating the Satsuma–Choshu alliance ⓘ role in overthrowing the Tokugawa shogunate ⓘ |
| mediated | Satsuma–Choshu alliance NERFINISHED ⓘ |
| name | Sakamoto Ryoma NERFINISHED ⓘ |
| nationality | Japanese ⓘ |
| nativeName | 坂本龍馬 NERFINISHED ⓘ |
| occupation |
entrepreneur
ⓘ
military leader ⓘ naval reformer ⓘ political activist ⓘ samurai ⓘ |
| opposed | Tokugawa shogunate NERFINISHED ⓘ |
| religion | Buddhism ⓘ |
| spouse | Narasaki Ryo NERFINISHED ⓘ |
| supported | restoration of imperial rule ⓘ |
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: Sakamoto Ryoma Description of subject: Sakamoto Ryoma was a key samurai reformer and political leader who helped overthrow the Tokugawa shogunate and pave the way for Japan’s Meiji Restoration.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sakamoto Ryōma