the Great Sea
E819723
The Great Sea is the vast ocean in J.R.R. Tolkien’s legendarium that lies between Middle-earth and the Undying Lands, forming a formidable barrier to the Blessed Realm of Valinor.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Great Sea | 2 |
| The Great Sea | 2 |
| the Great Sea canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9777578 — 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: the Great Sea Context triple: [Valinor, separatedBy, the Great Sea]
-
A.
Samudera
Samudera was a prominent early Islamic port city in northern Sumatra that served as the political and commercial center of the Pasai Sultanate.
-
B.
The High Seas
"The High Seas" is an episode of the nature documentary series "Our Planet" that explores the diverse and often unseen life and ecosystems found in the open ocean.
-
C.
Oceano
Oceano is a small coastal community in California known for its dunes, beaches, and outdoor recreation.
-
D.
Baheri
Baheri is a town located in the Darbhanga district of the Indian state of Bihar.
-
E.
The Ocean
"The Ocean" is a hard rock song by Led Zeppelin, known for its heavy riff, shifting time signatures, and closing position on their 1973 album "Houses of the Holy."
- 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: the Great Sea Target entity description: The Great Sea is the vast ocean in J.R.R. Tolkien’s legendarium that lies between Middle-earth and the Undying Lands, forming a formidable barrier to the Blessed Realm of Valinor.
-
A.
Samudera
Samudera was a prominent early Islamic port city in northern Sumatra that served as the political and commercial center of the Pasai Sultanate.
-
B.
The High Seas
"The High Seas" is an episode of the nature documentary series "Our Planet" that explores the diverse and often unseen life and ecosystems found in the open ocean.
-
C.
Oceano
Oceano is a small coastal community in California known for its dunes, beaches, and outdoor recreation.
-
D.
Baheri
Baheri is a town located in the Darbhanga district of the Indian state of Bihar.
-
E.
The Ocean
"The Ocean" is a hard rock song by Led Zeppelin, known for its heavy riff, shifting time signatures, and closing position on their 1973 album "Houses of the Holy."
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
body of water in Arda
ⓘ
fictional sea ⓘ |
| alsoKnownAs |
Belegaer
NERFINISHED
ⓘ
the Sundering Seas NERFINISHED ⓘ |
| appearsIn |
The History of Middle-earth
NERFINISHED
ⓘ
The Lord of the Rings NERFINISHED ⓘ The Silmarillion NERFINISHED ⓘ Unfinished Tales NERFINISHED ⓘ |
| associatedWithEvent |
the Downfall of Númenor
NERFINISHED
ⓘ
the Hiding of Valinor NERFINISHED ⓘ |
| borderedBy |
Beleriand
NERFINISHED
ⓘ
Gondor NERFINISHED ⓘ Harad NERFINISHED ⓘ Lindon NERFINISHED ⓘ |
| connectedTo |
Bay of Belfalas
NERFINISHED
ⓘ
Gulf of Lhûn NERFINISHED ⓘ Sea of Rhûn NERFINISHED ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| crossedBy |
Eärendil
NERFINISHED
ⓘ
the Elven-ships sailing West ⓘ the Exiles of the Noldor NERFINISHED ⓘ the Númenóreans NERFINISHED ⓘ |
| describedAs |
formidable barrier to the Blessed Realm
ⓘ
vast ocean ⓘ |
| era |
First Age
ⓘ
Second Age NERFINISHED ⓘ Third Age NERFINISHED ⓘ |
| etymology | Belegaer means Great Sea in Sindarin NERFINISHED ⓘ |
| formsBarrierTo |
Valinor
NERFINISHED
ⓘ
the Blessed Realm NERFINISHED ⓘ |
| hasDirectionTo |
East leads toward Middle-earth
ⓘ
West leads toward Valinor ⓘ |
| languageNameSindarin | Belegaer NERFINISHED ⓘ |
| liesBetween | Middle-earth and the Undying Lands NERFINISHED ⓘ |
| locatedEastOf | Aman NERFINISHED ⓘ |
| locatedWestOf | Middle-earth NERFINISHED ⓘ |
| mediumOf | Elven departure to the West NERFINISHED ⓘ |
| mentionedIn |
Akallabêth
NERFINISHED
ⓘ
Of the Voyage of Eärendil and the War of Wrath ⓘ |
| narrativeRole |
boundary between mortal lands and the Undying Lands
ⓘ
symbol of separation between Elves and Men ⓘ |
| partOf | Arda NERFINISHED ⓘ |
| separates |
Aman
NERFINISHED
ⓘ
Middle-earth NERFINISHED ⓘ |
| usedForVoyageBy |
the Edain
NERFINISHED
ⓘ
the Elves NERFINISHED ⓘ the Númenóreans NERFINISHED ⓘ |
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: the Great Sea Description of subject: The Great Sea is the vast ocean in J.R.R. Tolkien’s legendarium that lies between Middle-earth and the Undying Lands, forming a formidable barrier to the Blessed Realm of Valinor.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Great Sea
this entity surface form:
The Great Sea
this entity surface form:
Great Sea