Sea of Rhûn
E261168
The Sea of Rhûn is a large inland lake in J.R.R. Tolkien’s Middle-earth, situated in the far east beyond the lands familiar from The Lord of the Rings.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Sea of Rhûn canonical | 3 |
| Inland seas of Middle-earth | 1 |
| Lake Mithrim | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2369265 — 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: Sea of Rhûn Context triple: [Middle-earth, hasSea, Sea of Rhûn]
-
A.
Landwasser
Landwasser is a river in the canton of Graubünden in eastern Switzerland that flows through the alpine town of Davos.
-
B.
The Lake
The Lake is a picturesque man-made body of water in New York City's Central Park, popular for boating, scenic views, and surrounding walking paths.
-
C.
The Lake
The Lake is a village-like neighborhood in Newton, Massachusetts, known for its strong community identity and historically Irish-American roots.
-
D.
The Lake
The Lake is a painting by British artist L. S. Lowry, known for his distinctive depictions of industrial landscapes and urban life.
-
E.
Savunese waters
Savunese waters are the maritime area surrounding Savu Island in eastern Indonesia, known for their rich marine biodiversity and role in local fishing and seafaring.
- 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: Sea of Rhûn Target entity description: The Sea of Rhûn is a large inland lake in J.R.R. Tolkien’s Middle-earth, situated in the far east beyond the lands familiar from The Lord of the Rings.
-
A.
Landwasser
Landwasser is a river in the canton of Graubünden in eastern Switzerland that flows through the alpine town of Davos.
-
B.
The Lake
The Lake is a village-like neighborhood in Newton, Massachusetts, known for its strong community identity and historically Irish-American roots.
-
C.
The Lake
The Lake is a painting by British artist L. S. Lowry, known for his distinctive depictions of industrial landscapes and urban life.
-
D.
The Lake
The Lake is a picturesque man-made body of water in New York City's Central Park, popular for boating, scenic views, and surrounding walking paths.
-
E.
Savunese waters
Savunese waters are the maritime area surrounding Savu Island in eastern Indonesia, known for their rich marine biodiversity and role in local fishing and seafaring.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
body of water in Middle-earth
ⓘ
fictional lake ⓘ |
| appearsIn |
The Hobbit (maps)
ⓘ
linked to:
The Hobbit
The Lord of the Rings (appendices and maps) ⓘ
linked to:
The Lord of the Rings appendices
The Silmarillion (maps in some editions) ⓘ
linked to:
The Silmarillion
Unfinished Tales (maps) ⓘ
linked to:
Unfinished Tales
|
| associatedWithPeople |
Easterlings
ⓘ
Men of Rhûn ⓘ |
| cartographyBy |
Christopher Tolkien
ⓘ
linked to:
Christopher John Reuel Tolkien
|
| countryOfOriginOfWork | United Kingdom ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| describedAs |
inland lake
ⓘ
large inland sea ⓘ |
| fandomWikiPage | https://lotr.fandom.com/wiki/Sea_of_Rh%C3%BBn ⓘ |
| firstPublishedIn | The Lord of the Rings (1954–1955) ⓘ |
| genre | high fantasy ⓘ |
| hasCanonicalStatus | primary canon (Tolkien legendarium) ⓘ |
| hasLanguageNameIn | Sindarin ⓘ |
| hasShoreRegion | lands of Rhûn ⓘ |
| locatedEastOf |
Mirkwood
ⓘ
Misty Mountains ⓘ Rhovanion ⓘ Wilderland ⓘ |
| locatedInDirection | far east of Middle-earth ⓘ |
| locatedInFictionalUniverse | Middle-earth ⓘ |
| locatedInRegion | Rhûn ⓘ |
| mapFeatureIn |
The Hobbit maps
ⓘ
The Lord of the Rings maps ⓘ |
| medium | literature ⓘ |
| mentionedIn |
The Lord of the Rings, Appendix A
ⓘ
linked to:
The Lord of the Rings appendices
The Lord of the Rings, Appendix B ⓘ
linked to:
The Lord of the Rings appendices
The Lord of the Rings, Appendix F ⓘ
linked to:
The Lord of the Rings appendices
|
| nameElement |
Rhûn means “east” in Sindarin
ⓘ
linked to:
Rhûn
|
| nameMeaning | Sea of the East ⓘ |
| notableFor | marking the eastern limits of the main published maps of Middle-earth ⓘ |
| partOf | eastern regions of Middle-earth ⓘ |
| relatedTo |
Inland seas of Middle-earth
ⓘ
linked to:
Sea of Rhûn
Sea of Núrnen ⓘ
linked to:
the Sea of Núrnen
|
| timePeriod |
exists in earlier Ages of Middle-earth
ⓘ
exists throughout the Third Age ⓘ |
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: Sea of Rhûn Description of subject: The Sea of Rhûn is a large inland lake in J.R.R. Tolkien’s Middle-earth, situated in the far east beyond the lands familiar from The Lord of the Rings.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sea of Rhûn
linked to: Sea of Rhûn