the Gates of Sirion
E901143
The Gates of Sirion are a narrow, fortified river pass in J.R.R. Tolkien’s legendarium, where the River Sirion cuts through steep cliffs to form a strategic and defensible entrance to Beleriand.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Mouths of Sirion | 1 |
| the Gates of Sirion canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11047682 — 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 Gates of Sirion Context triple: [Sirion, flowsThrough, the Gates of Sirion]
-
A.
Gates of Light
Gates of Light is a classic Kabbalistic work by Rabbi Joseph Gikatilla that systematically explores the divine names and sefirot in Jewish mysticism.
-
B.
Gates of Eden
"Gates of Eden" is a surreal, poetic song by Bob Dylan that explores themes of illusion, truth, and spiritual searching.
-
C.
Arular
Arular is the critically acclaimed debut studio album by British-Sri Lankan artist M.I.A., known for its politically charged lyrics and innovative fusion of electronic, hip hop, and world music.
-
D.
Across the Sea of Suns
Across the Sea of Suns is a hard science fiction novel by Gregory Benford that follows humanity’s first deep-space expedition and its encounter with mysterious alien civilizations.
-
E.
Firmament
Firmament is the vast, arching expanse of sky or heavens often conceived in ancient cosmologies as a solid dome separating the earthly realm from the celestial.
- 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 Gates of Sirion Target entity description: The Gates of Sirion are a narrow, fortified river pass in J.R.R. Tolkien’s legendarium, where the River Sirion cuts through steep cliffs to form a strategic and defensible entrance to Beleriand.
-
A.
Gates of Light
Gates of Light is a classic Kabbalistic work by Rabbi Joseph Gikatilla that systematically explores the divine names and sefirot in Jewish mysticism.
-
B.
Gates of Eden
"Gates of Eden" is a surreal, poetic song by Bob Dylan that explores themes of illusion, truth, and spiritual searching.
-
C.
Arular
Arular is the critically acclaimed debut studio album by British-Sri Lankan artist M.I.A., known for its politically charged lyrics and innovative fusion of electronic, hip hop, and world music.
-
D.
Across the Sea of Suns
Across the Sea of Suns is a hard science fiction novel by Gregory Benford that follows humanity’s first deep-space expedition and its encounter with mysterious alien civilizations.
-
E.
Firmament
Firmament is the vast, arching expanse of sky or heavens often conceived in ancient cosmologies as a solid dome separating the earthly realm from the celestial.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
fictional location
ⓘ
fortified pass ⓘ geographical feature in Beleriand ⓘ river pass ⓘ |
| accesses |
interior of Beleriand
ⓘ
lands south of Beleriand ⓘ |
| appearsIn |
The Children of Húrin
ⓘ
The Silmarillion ⓘ |
| associatedWith |
Elven realms of Beleriand
ⓘ
linked to:
Elven realms of Middle-earth
wars against Morgoth ⓘ |
| cartographicSource | maps of Beleriand in The Silmarillion ⓘ |
| continent | Middle-earth ⓘ |
| controlledBy | Elves of Beleriand ⓘ |
| createdBy | J. R. R. Tolkien ⓘ |
| defendedBy |
fortifications
ⓘ
watch-towers ⓘ |
| era | First Age ⓘ |
| fictionalUniverse |
legendarium of J. R. R. Tolkien
ⓘ
linked to:
legendarium of Middle-earth
|
| formedBy | River Sirion cutting through the Andram ⓘ |
| function |
barrier against incursions from the south
ⓘ
controls passage along the Sirion valley ⓘ |
| geologicalContext | breach in the Andram long wall ⓘ |
| guardedAgainst |
forces of Morgoth
ⓘ
linked to:
forces of Angband
|
| languageOfName | Sindarin ⓘ |
| locatedBetween |
North Beleriand
ⓘ
linked to:
Beleriand
South Beleriand ⓘ
linked to:
Beleriand
|
| locatedInRegion | Beleriand ⓘ |
| locatedOnRiver | Sirion ⓘ |
| mentionedInSection |
Quenta Silmarillion
ⓘ
linked to:
The Silmarillion
|
| nearbyRegion |
Brethil (to the west, beyond Sirion)
ⓘ
Dor-lómin (to the north-west, via Sirion valley) ⓘ Doriath (north-east of the lower Sirion) ⓘ
linked to:
Doriath
Falas (downstream to the west) ⓘ |
| notableFeature |
easily defensible approach from the south
ⓘ
narrowing of Sirion between high rock walls ⓘ |
| relatedFeature |
Andram
ⓘ
Vale of Sirion ⓘ |
| status | destroyed or lost beneath the sea after the War of Wrath ⓘ |
| strategicRole |
defensible choke point
ⓘ
main entrance to Beleriand from the south ⓘ |
| terrain |
narrow gorge
ⓘ
steep cliffs ⓘ |
| watercourseType | river pass ⓘ |
| world | Arda ⓘ |
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 Gates of Sirion Description of subject: The Gates of Sirion are a narrow, fortified river pass in J.R.R. Tolkien’s legendarium, where the River Sirion cuts through steep cliffs to form a strategic and defensible entrance to Beleriand.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: the Gates of Sirion