Eithel Sirion
E901138
Eithel Sirion is a legendary spring in J.R.R. Tolkien’s Middle-earth, known as the chief source of the great River Sirion in Beleriand.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Eithel Sirion canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11047675 — 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: Eithel Sirion Context triple: [Sirion, flowsFrom, Eithel Sirion]
-
A.
Elidir Fawr
Elidir Fawr is a prominent mountain in Snowdonia, Wales, known for its rugged slopes and status as one of the higher peaks in the region.
-
B.
Doriathrin
Doriathrin is an archaic Elvish dialect from J.R.R. Tolkien’s legendarium, associated with the realm of Doriath and considered a precursor to the Sindarin language.
-
C.
Arahael
Arahael is a little-known Dúnedain chieftain of the North in J.R.R. Tolkien’s legendarium, descended from Isildur and part of the royal line that eventually leads to Aragorn.
-
D.
Ivorwen
Ivorwen is a Dúnedain woman of Arnor in J.R.R. Tolkien’s legendarium, best known as the grandmother of Aragorn II through her daughter Gilraen.
-
E.
Revendreth
Revendreth is a gothic, vampire-themed realm in World of Warcraft’s Shadowlands expansion where souls burdened by pride are punished and redeemed under the rule of the Venthyr.
- 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: Eithel Sirion Target entity description: Eithel Sirion is a legendary spring in J.R.R. Tolkien’s Middle-earth, known as the chief source of the great River Sirion in Beleriand.
-
A.
Elidir Fawr
Elidir Fawr is a prominent mountain in Snowdonia, Wales, known for its rugged slopes and status as one of the higher peaks in the region.
-
B.
Doriathrin
Doriathrin is an archaic Elvish dialect from J.R.R. Tolkien’s legendarium, associated with the realm of Doriath and considered a precursor to the Sindarin language.
-
C.
Arahael
Arahael is a little-known Dúnedain chieftain of the North in J.R.R. Tolkien’s legendarium, descended from Isildur and part of the royal line that eventually leads to Aragorn.
-
D.
Ivorwen
Ivorwen is a Dúnedain woman of Arnor in J.R.R. Tolkien’s legendarium, best known as the grandmother of Aragorn II through her daughter Gilraen.
-
E.
Revendreth
Revendreth is a gothic, vampire-themed realm in World of Warcraft’s Shadowlands expansion where souls burdened by pride are punished and redeemed under the rule of the Venthyr.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
body of water in Beleriand
ⓘ
fictional spring ⓘ location in Middle-earth ⓘ |
| appearsIn |
The History of Middle-earth
NERFINISHED
ⓘ
The Silmarillion ⓘ |
| associatedEvent |
Dagor Bragollach
NERFINISHED
ⓘ
Siege of Angband NERFINISHED ⓘ |
| associatedWith |
Fingolfin
NERFINISHED
ⓘ
Noldor NERFINISHED ⓘ |
| belongsTo | legendarium of J. R. R. Tolkien ⓘ |
| country | Beleriand NERFINISHED ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| describedAs | chief source of the River Sirion ⓘ |
| fictionalTimePeriod | First Age NERFINISHED ⓘ |
| flowsInto | Sirion NERFINISHED ⓘ |
| genre | high fantasy ⓘ |
| guardedBy |
Fingolfin
NERFINISHED
ⓘ
Fingon NERFINISHED ⓘ |
| languageOfName | Sindarin NERFINISHED ⓘ |
| locatedIn |
Beleriand
NERFINISHED
ⓘ
Dor-lómin NERFINISHED ⓘ Hithlum NERFINISHED ⓘ |
| mapFeatureIn | First Age maps of Beleriand ⓘ |
| medium | literature ⓘ |
| nameMeaning | Well of Sirion NERFINISHED ⓘ |
| near |
Ered Wethrin
NERFINISHED
ⓘ
Mountains of Shadow NERFINISHED ⓘ fortress of Fingolfin ⓘ |
| notableFor |
being the main spring of the greatest river of Beleriand
ⓘ
its proximity to the Noldorin stronghold in Hithlum ⓘ |
| partOf | Sirion river system NERFINISHED ⓘ |
| regionType | northern Beleriand NERFINISHED ⓘ |
| sourceOf | River Sirion NERFINISHED ⓘ |
| strategicImportance | guarded the northern passes into Beleriand ⓘ |
| universe | Middle-earth 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: Eithel Sirion Description of subject: Eithel Sirion is a legendary spring in J.R.R. Tolkien’s Middle-earth, known as the chief source of the great River Sirion in Beleriand.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.