Ōshima Yoshimasa
E265430
Ōshima Yoshimasa was an Imperial Japanese Army general best known for his leadership during the First Sino-Japanese War, including commanding Japanese forces at the Battle of Seonghwan.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ōshima Yoshimasa canonical | 2 |
| Yoshimasa | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2417168 — 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: Ōshima Yoshimasa Context triple: [Battle of Seonghwan, commander, Ōshima Yoshimasa]
-
A.
Toyotomi Tsurumatsu
Toyotomi Tsurumatsu was the short-lived son and heir of Japanese warlord Toyotomi Hideyoshi during the late Sengoku period.
-
B.
Ugaki Kazushige
Ugaki Kazushige was a Japanese military officer and politician who served as a prominent imperial administrator during Japan’s pre-World War II expansion.
-
C.
Prince Iyesato Tokugawa
Prince Iyesato Tokugawa was a prominent Japanese statesman and internationalist leader of the early 20th century who played a key diplomatic role in fostering U.S.–Japan relations and supporting naval disarmament efforts.
-
D.
Tokugawa Hidetada
Tokugawa Hidetada was the second shogun of Japan’s Tokugawa shogunate, who consolidated his father Ieyasu’s rule and oversaw the early Edo period.
-
E.
Toyotomi Hideyoshi
Toyotomi Hideyoshi was a preeminent 16th-century Japanese daimyo and military leader who unified Japan after a long period of civil war and laid the foundations for the Tokugawa shogunate.
- 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: Ōshima Yoshimasa Target entity description: Ōshima Yoshimasa was an Imperial Japanese Army general best known for his leadership during the First Sino-Japanese War, including commanding Japanese forces at the Battle of Seonghwan.
-
A.
Toyotomi Tsurumatsu
Toyotomi Tsurumatsu was the short-lived son and heir of Japanese warlord Toyotomi Hideyoshi during the late Sengoku period.
-
B.
Ugaki Kazushige
Ugaki Kazushige was a Japanese military officer and politician who served as a prominent imperial administrator during Japan’s pre-World War II expansion.
-
C.
Prince Iyesato Tokugawa
Prince Iyesato Tokugawa was a prominent Japanese statesman and internationalist leader of the early 20th century who played a key diplomatic role in fostering U.S.–Japan relations and supporting naval disarmament efforts.
-
D.
Tokugawa Hidetada
Tokugawa Hidetada was the second shogun of Japan’s Tokugawa shogunate, who consolidated his father Ieyasu’s rule and oversaw the early Edo period.
-
E.
Toyotomi Hideyoshi
Toyotomi Hideyoshi was a preeminent 16th-century Japanese daimyo and military leader who unified Japan after a long period of civil war and laid the foundations for the Tokugawa shogunate.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
Imperial Japanese Army general
ⓘ
human ⓘ |
| affiliation | Imperial Japanese Army ⓘ |
| conflict | First Sino-Japanese War ⓘ |
| countryOfCitizenship |
Empire of Japan
ⓘ
linked to:
Imperial Japan
|
| ethnicGroup | Japanese ⓘ |
| familyName | Ōshima ⓘ |
| gender | male ⓘ |
| givenName |
Yoshimasa
ⓘ
linked to:
Ōshima Yoshimasa
|
| knownFor | commanding Japanese forces at the Battle of Seonghwan ⓘ |
| militaryBranch | Imperial Japanese Army ⓘ |
| militaryRank | general ⓘ |
| name | Ōshima Yoshimasa ⓘ |
| nativeLanguage | Japanese ⓘ |
| notability | leadership during the First Sino-Japanese War ⓘ |
| notableEvent | Battle of Seonghwan ⓘ |
| notableWork | Command of Japanese forces at the Battle of Seonghwan ⓘ |
| occupation | military officer ⓘ |
| participantIn |
Battle of Seonghwan
ⓘ
First Sino-Japanese War ⓘ |
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: Ōshima Yoshimasa Description of subject: Ōshima Yoshimasa was an Imperial Japanese Army general best known for his leadership during the First Sino-Japanese War, including commanding Japanese forces at the Battle of Seonghwan.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ōshima Yoshimasa