Arkenstone of Thrain
E218718
The Arkenstone of Thrain is a legendary, radiant gem from J.R.R. Tolkien’s Middle-earth, revered as the heart of the Lonely Mountain and a symbol of the rightful kingship of Durin’s folk.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Arkenstone of Thráin | 2 |
| Arkenstone of Thrain canonical | 1 |
| The Arkenstone | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1964136 — 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: Arkenstone of Thrain Context triple: [Smaug, hoards, Arkenstone of Thrain]
-
A.
Roundthorn
Roundthorn is an area in Greater Manchester, England, known primarily as a business and industrial district near Wythenshawe.
-
B.
Thamserku
Thamserku is a prominent Himalayan peak in eastern Nepal, known for its steep, dramatic profile and popularity among experienced mountaineers.
-
C.
Thorin Oakenshield
Thorin Oakenshield is a proud and determined Dwarf leader from J.R.R. Tolkien’s Middle-earth legendarium, best known for leading the quest to reclaim the Lonely Mountain and its treasure from the dragon Smaug.
-
D.
Shining Tor
Shining Tor is a prominent hill in the Peak District of England, known for its panoramic views over the surrounding Derbyshire and Cheshire countryside.
-
E.
Tôr
Tôr is a small village in the municipality of Loulé in Portugal’s Algarve region, known for its rural character and surrounding vineyards.
- 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: Arkenstone of Thrain Target entity description: The Arkenstone of Thrain is a legendary, radiant gem from J.R.R. Tolkien’s Middle-earth, revered as the heart of the Lonely Mountain and a symbol of the rightful kingship of Durin’s folk.
-
A.
Roundthorn
Roundthorn is an area in Greater Manchester, England, known primarily as a business and industrial district near Wythenshawe.
-
B.
Thamserku
Thamserku is a prominent Himalayan peak in eastern Nepal, known for its steep, dramatic profile and popularity among experienced mountaineers.
-
C.
Thorin Oakenshield
Thorin Oakenshield is a proud and determined Dwarf leader from J.R.R. Tolkien’s Middle-earth legendarium, best known for leading the quest to reclaim the Lonely Mountain and its treasure from the dragon Smaug.
-
D.
Shining Tor
Shining Tor is a prominent hill in the Peak District of England, known for its panoramic views over the surrounding Derbyshire and Cheshire countryside.
-
E.
Tôr
Tôr is a small village in the municipality of Loulé in Portugal’s Algarve region, known for its rural character and surrounding vineyards.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
fictional gemstone
ⓘ
legendary artifact ⓘ symbol of kingship ⓘ |
| alsoKnownAs |
Arkenstone
ⓘ
Heart of the Lonely Mountain ⓘ Heart of the Mountain ⓘ |
| associatedWithCharacter |
Bard the Bowman
ⓘ
Bilbo Baggins ⓘ Thorin Oakenshield ⓘ Thranduil ⓘ |
| associatedWithLocation |
Erebor
ⓘ
Lonely Mountain ⓘ |
| associatedWithRace |
Dwarves
ⓘ
Wood-elves of Mirkwood ⓘ
surface form:
Elves of Mirkwood
Men of Dale ⓘ |
| belongsTo |
Dwarves of Erebor
ⓘ
surface form:
Durin's folk
|
| centralToEvent |
The Quest of Erebor
ⓘ
surface form:
Quest of Erebor
sack of Erebor ⓘ
surface form:
Siege of the Lonely Mountain
|
| creator | J. R. R. Tolkien ⓘ |
| describedInWork | The Hobbit ⓘ |
| discoveredBy | dwarves of Erebor ⓘ |
| fictionalUniverse | Middle-earth ⓘ |
| firstAppearance | The Hobbit ⓘ |
| highlyValuedBy |
Thorin Oakenshield
ⓘ
dwarves ⓘ |
| narrativeRole |
object of Thorin's obsession
ⓘ
symbol of greed and possessiveness ⓘ test of Bilbo's loyalty ⓘ |
| notableProperty |
glows of its own accord
ⓘ
shines with inner light ⓘ visible light even in darkness ⓘ |
| origin | found beneath the roots of the Lonely Mountain ⓘ |
| owner |
Thorin Oakenshield
ⓘ
Thráin II ⓘ Thrór ⓘ |
| physicalAppearance |
brilliant white gem
ⓘ
radiant jewel ⓘ |
| plotFunction | catalyst for conflict over Erebor's treasure ⓘ |
| relatedWork |
The Hobbit: The Battle of the Five Armies
ⓘ
surface form:
The Hobbit: The Battle of the Five Armies (film)
The Hobbit: The Desolation of Smaug ⓘ
surface form:
The Hobbit: The Desolation of Smaug (film)
|
| symbolizes |
heirship of Thorin Oakenshield
ⓘ
rightful kingship of Durin's line ⓘ sovereignty over Erebor ⓘ |
| temporarilyHeldBy |
Bard the Bowman
ⓘ
Bilbo Baggins ⓘ Thranduil ⓘ |
| timePeriodInFiction | Third Age of Middle-earth ⓘ |
| usedAs |
bargaining token
ⓘ
ransom in negotiations with Thorin ⓘ |
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: Arkenstone of Thrain Description of subject: The Arkenstone of Thrain is a legendary, radiant gem from J.R.R. Tolkien’s Middle-earth, revered as the heart of the Lonely Mountain and a symbol of the rightful kingship of Durin’s folk.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Arkenstone of Thráin
this entity surface form:
Arkenstone of Thráin
this entity surface form:
The Arkenstone