Sirion
E261173
Sirion is one of the greatest rivers of Middle-earth in J.R.R. Tolkien’s legendarium, flowing from the northern regions of Beleriand to the sea and playing a central role in many events of the First Age.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sirion canonical | 25 |
How this entity was disambiguated
This entity first appeared as the object of triple T2369272 — 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: Sirion Context triple: [Middle-earth, hasRiver, Sirion]
-
A.
Sion
Sion is a historic Swiss town in the canton of Valais, known for its hilltop castles, vineyards, and role as a regional cultural and administrative center.
-
B.
Ozian
Ozian refers to a fictional inhabitant of the Land of Oz, the magical realm featured in L. Frank Baum’s Oz book series.
-
C.
Alaior
Alaior is a historic inland town and municipality on the Spanish island of Menorca, known for its traditional architecture and local cheese production.
-
D.
Phaeo
Phaeo is a lesser-known figure in Greek mythology, identified as a daughter of the Titan Atlas.
-
E.
Sy’rai
Sy’rai is an American singer and songwriter best known as the daughter of R&B star Brandy, with whom she has collaborated on several music projects.
- 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: Sirion Target entity description: Sirion is one of the greatest rivers of Middle-earth in J.R.R. Tolkien’s legendarium, flowing from the northern regions of Beleriand to the sea and playing a central role in many events of the First Age.
-
A.
Sion
Sion is a historic Swiss town in the canton of Valais, known for its hilltop castles, vineyards, and role as a regional cultural and administrative center.
-
B.
Ozian
Ozian refers to a fictional inhabitant of the Land of Oz, the magical realm featured in L. Frank Baum’s Oz book series.
-
C.
Alaior
Alaior is a historic inland town and municipality on the Spanish island of Menorca, known for its traditional architecture and local cheese production.
-
D.
Phaeo
Phaeo is a lesser-known figure in Greek mythology, identified as a daughter of the Titan Atlas.
-
E.
Sy’rai
Sy’rai is an American singer and songwriter best known as the daughter of R&B star Brandy, with whom she has collaborated on several music projects.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
fictional river
ⓘ
river of Middle-earth ⓘ |
| appearsIn |
The Children of Húrin
ⓘ
The Silmarillion ⓘ Unfinished Tales ⓘ |
| associatedEvent |
Battle of Unnumbered Tears
ⓘ
Battle of the Sudden Flame ⓘ attack on the Havens of Sirion by the Sons of Fëanor ⓘ escape of Turgon’s people from Gondolin ⓘ founding of the Havens of Sirion ⓘ journey of Tuor to Gondolin ⓘ rescue of Beren and Lúthien by Huan and Celegorm’s riders near the Pass of Sirion ⓘ retreat of Fingon’s host after the Nirnaeth Arnoediad ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| flowsFrom | Eithel Sirion ⓘ |
| flowsInto | Belegaer ⓘ |
| flowsThrough |
Dor-lómin
ⓘ
Mithrim ⓘ Nan-tathren ⓘ the Fen of Serech ⓘ the Gates of Sirion ⓘ the Pass of Sirion ⓘ the Plains of Ard-galen ⓘ
linked to:
Gladden Fields
the Sirion Vale ⓘ |
| formsBoundaryBetween |
Dorthonion and Hithlum
ⓘ
West Beleriand and East Beleriand ⓘ |
| hasRegionAlongBanks |
Fens of Sirion
ⓘ
Havens of Sirion ⓘ Isle of Balar (near its mouths) ⓘ Mouths of Sirion ⓘ
linked to:
the Gates of Sirion
|
| hasTributary |
Aros
ⓘ
Ascar ⓘ Celon ⓘ Esgalduin ⓘ Gelion (via channels after the Breaking of Thargelion) ⓘ Mindeb ⓘ Narog ⓘ Rivil ⓘ |
| importance | major waterway of Beleriand ⓘ |
| locatedIn | Beleriand ⓘ |
| locatedOnContinent | Middle-earth ⓘ |
| mouthLocatedAt | Bay of Balar ⓘ |
| notableFeature |
emerges in a great gorge south of the Mountains of Shadow
ⓘ
fertile willow-meads of Nan-tathren along its lower course ⓘ passes underground at the Gates of Sirion ⓘ |
| passesNear |
Amon Rûdh (regionally)
ⓘ
Doriath (via tributary Esgalduin) ⓘ Minas Tirith of Finrod ⓘ
linked to:
Minas Tirith
Nargothrond (via tributary Narog) ⓘ
linked to:
Nargothrond
Tol Sirion ⓘ
linked to:
Taur-nu-Fuin
|
| sourceLocatedIn | Ered Wethrin ⓘ |
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: Sirion Description of subject: Sirion is one of the greatest rivers of Middle-earth in J.R.R. Tolkien’s legendarium, flowing from the northern regions of Beleriand to the sea and playing a central role in many events of the First Age.
Referenced by (25)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
the Pass of Sirion
subject linked to:
the Fen of Serech
subject linked to:
the Fen of Serech
subject linked to:
the Gates of Sirion