Sagami Bay
E166957
Sagami Bay is a coastal body of water south of Tokyo, Japan, known for its deep submarine canyon, rich marine biodiversity, and significant seismic activity.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Sagami Bay canonical | 16 |
| Sagami Sea | 2 |
| Yokohama Bay | 1 |
| 相模湾 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1173939 — 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: Sagami Bay Context triple: [Great Kanto earthquake, epicenter, Sagami Bay]
-
A.
Osaka Bay
Osaka Bay is a shallow, industrially important inlet of the Seto Inland Sea in Japan, bordered by major cities like Osaka and Kobe and serving as a key hub for shipping and coastal development.
-
B.
Tokyo Bay
Tokyo Bay is a large, strategically significant inlet on the Pacific coast of Honshu that serves as the maritime gateway to Japan’s capital, Tokyo.
-
C.
Seto Inland Sea
The Seto Inland Sea is a sheltered body of water in western Japan, dotted with numerous islands and spanned by major bridges, known for its scenic beauty, mild climate, and historical role as an important maritime route.
-
D.
Harima-nada Sea
The Harima-nada Sea is a section of Japan’s Seto Inland Sea along the coast of Hyōgo Prefecture, known for its sheltered waters, fishing grounds, and busy maritime routes.
-
E.
Seto Inland Sea region
The Seto Inland Sea region is a coastal area of western Japan known for its sheltered waters, numerous islands, maritime industry, and historically important naval and commercial ports.
- 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: Sagami Bay Target entity description: Sagami Bay is a coastal body of water south of Tokyo, Japan, known for its deep submarine canyon, rich marine biodiversity, and significant seismic activity.
-
A.
Osaka Bay
Osaka Bay is a shallow, industrially important inlet of the Seto Inland Sea in Japan, bordered by major cities like Osaka and Kobe and serving as a key hub for shipping and coastal development.
-
B.
Tokyo Bay
Tokyo Bay is a large, strategically significant inlet on the Pacific coast of Honshu that serves as the maritime gateway to Japan’s capital, Tokyo.
-
C.
Seto Inland Sea
The Seto Inland Sea is a sheltered body of water in western Japan, dotted with numerous islands and spanned by major bridges, known for its scenic beauty, mild climate, and historical role as an important maritime route.
-
D.
Harima-nada Sea
The Harima-nada Sea is a section of Japan’s Seto Inland Sea along the coast of Hyōgo Prefecture, known for its sheltered waters, fishing grounds, and busy maritime routes.
-
E.
Seto Inland Sea region
The Seto Inland Sea region is a coastal area of western Japan known for its sheltered waters, numerous islands, maritime industry, and historically important naval and commercial ports.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
bay
ⓘ
coastal body of water ⓘ |
| associatedWith |
frequent earthquakes
ⓘ
tsunami risk ⓘ |
| borders |
Izu Peninsula
ⓘ
Miura Peninsula ⓘ |
| climateZone | temperate ⓘ |
| country | Japan ⓘ |
| drainsFrom |
Sagami River
ⓘ
Sakawa River ⓘ |
| hasEcosystem |
coastal pelagic communities
ⓘ
deep-sea benthic communities ⓘ temperate marine ecosystem ⓘ |
| hasFeature |
Sagami Trough
ⓘ
deep submarine canyon ⓘ steep continental slope ⓘ |
| hasHumanActivity |
coastal tourism
ⓘ
shipping ⓘ |
| hasInstitution | Japan Agency for Marine-Earth Science and Technology (JAMSTEC) research facilities nearby ⓘ |
| hasJapaneseName |
Sagami Bay
self-linksurface differs
ⓘ
surface form:
相模湾
|
| knownFor |
deep-sea research
ⓘ
rich marine biodiversity ⓘ significant seismic activity ⓘ submarine canyon system ⓘ |
| locatedIn |
Honshu
ⓘ
Kanagawa Prefecture NERFINISHED ⓘ Pacific Ocean ⓘ |
| locatedSouthOf |
Tokyo
ⓘ
Yokohama ⓘ |
| marineLife |
marine mammals observed seasonally
ⓘ
numerous fish species ⓘ various deep-sea invertebrates ⓘ |
| maximumDepth | approximately 1500 meters ⓘ |
| monitoredBy |
Japan Meteorological Agency
ⓘ
surface form:
Japanese meteorological and oceanographic agencies
|
| near |
Enoshima
ⓘ
Odawara ⓘ Shonan coast ⓘ Tokyo metropolitan area ⓘ |
| partOf |
Kanto region coastal waters
ⓘ
Philippine Sea region ⓘ |
| riskFactor | earthquake-generated tsunamis ⓘ |
| tectonicSetting |
influenced by Sagami Trough subduction zone
ⓘ
near plate boundary between Philippine Sea Plate and Okhotsk Plate ⓘ |
| usedFor |
commercial fishing
ⓘ
marine research ⓘ recreational fishing ⓘ scuba diving ⓘ |
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: Sagami Bay Description of subject: Sagami Bay is a coastal body of water south of Tokyo, Japan, known for its deep submarine canyon, rich marine biodiversity, and significant seismic activity.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
相模湾
this entity surface form:
Sagami Sea
this entity surface form:
Sagami Sea
this entity surface form:
Yokohama Bay