Arkenstone
E778867
The Arkenstone is a legendary, radiant white gem revered as the "Heart of the Mountain" and the most prized treasure of the Dwarves of Erebor in J.R.R. Tolkien's Middle-earth legendarium.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Arkenstone canonical | 6 |
| the Arkenstone | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9115683 — 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 Context triple: [Erebor, hasNotableArtifact, Arkenstone]
-
A.
Isengard
Isengard is a fortified stronghold in J.R.R. Tolkien's Middle-earth, dominated by the tower of Orthanc and later transformed into an industrial war machine under Saruman.
-
B.
Eynhallow
Eynhallow is a small, uninhabited island in the Orkney archipelago of Scotland, noted for its archaeological remains and surrounding strong tidal currents.
-
C.
Rivenhall
Rivenhall is a village in Essex, England, notable for hosting the headquarters of the Essex County Fire and Rescue Service.
-
D.
Essenrode
Essenrode is a small village in Lower Saxony, Germany, historically associated with the noble von Hardenberg family.
-
E.
Eythorne
Eythorne is a small village in Kent, England, known for its rural character and location near the port town of Dover.
- 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 Target entity description: The Arkenstone is a legendary, radiant white gem revered as the "Heart of the Mountain" and the most prized treasure of the Dwarves of Erebor in J.R.R. Tolkien's Middle-earth legendarium.
-
A.
Isengard
Isengard is a fortified stronghold in J.R.R. Tolkien's Middle-earth, dominated by the tower of Orthanc and later transformed into an industrial war machine under Saruman.
-
B.
Eynhallow
Eynhallow is a small, uninhabited island in the Orkney archipelago of Scotland, noted for its archaeological remains and surrounding strong tidal currents.
-
C.
Rivenhall
Rivenhall is a village in Essex, England, notable for hosting the headquarters of the Essex County Fire and Rescue Service.
-
D.
Essenrode
Essenrode is a small village in Lower Saxony, Germany, historically associated with the noble von Hardenberg family.
-
E.
Eythorne
Eythorne is a small village in Kent, England, known for its rural character and location near the port town of Dover.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
fictional gemstone
ⓘ
legendary artifact ⓘ treasure of Erebor ⓘ |
| alsoKnownAs | Heart of the Mountain ⓘ |
| appearsIn | The Hobbit ⓘ |
| associatedEvent |
Battle of Five Armies
ⓘ
Quest of Erebor ⓘ
linked to:
The Quest of Erebor
|
| associatedWithRace | Dwarves ⓘ |
| belongsTo |
legendarium of J. R. R. Tolkien
ⓘ
linked to:
legendarium of Middle-earth
|
| belongsToCulture |
Dwarven culture
ⓘ
linked to:
Dwarves
|
| causes | conflict over Erebor's treasure ⓘ |
| color | radiant white ⓘ |
| covetedBy | Thorin Oakenshield ⓘ |
| creator | J. R. R. Tolkien ⓘ |
| describedAs |
cut and fashioned by the Dwarves
ⓘ
gleaming like silver in the firelight ⓘ shining with inner light ⓘ white gem like a globe with a thousand facets ⓘ |
| desiredBy | Thorin Oakenshield ⓘ |
| discoveredBy |
Thrain I
ⓘ
linked to:
Thráin I
|
| fictionalUniverse | Middle-earth ⓘ |
| firstPublicationContext | The Hobbit (1937) ⓘ |
| foundIn | roots of the Lonely Mountain ⓘ |
| guardedBy | Smaug ⓘ |
| influences | Thorin Oakenshield's greed ⓘ |
| keptIn | treasure hoard of Erebor ⓘ |
| linkedToTheme |
covetousness
ⓘ
greed ⓘ rightful kingship ⓘ |
| medium | literature ⓘ |
| mostPrizedTreasureOf | Dwarves of Erebor ⓘ |
| narrativeRole | central plot device in The Hobbit ⓘ |
| originalOwner |
Thror
ⓘ
linked to:
Thrór
|
| primaryLocation |
Erebor
ⓘ
Lonely Mountain ⓘ |
| propertyOf |
House of Durin
ⓘ
Kings under the Mountain ⓘ
linked to:
Kingdom under the Mountain
|
| soughtBy | Thorin Oakenshield ⓘ |
| symbolOf |
kingship of Erebor
ⓘ
linked to:
King of Erebor
royal authority of Durin's Folk ⓘ |
| takenBy | Bilbo Baggins ⓘ |
| temporarilyHeldBy |
Bard the Bowman
ⓘ
Thranduil ⓘ |
| timePeriodInFiction | Third Age of Middle-earth ⓘ |
| usedAs | bargaining token ⓘ |
| usedBy | Bilbo Baggins ⓘ |
| usedTo | negotiate peace at the Battle of Five Armies ⓘ |
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 Description of subject: The Arkenstone is a legendary, radiant white gem revered as the "Heart of the Mountain" and the most prized treasure of the Dwarves of Erebor in J.R.R. Tolkien's Middle-earth legendarium.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.