Sundial
E361511
Sundial is a timekeeping device that uses the position of the sun’s shadow cast by a gnomon onto a marked surface to indicate the time of day.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sundial canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3477180 — 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: Sundial Context triple: [Noname, notableWork, Sundial]
-
A.
The Sundial
"The Sundial" is a darkly comic Gothic novel by Shirley Jackson that explores themes of family dysfunction, apocalyptic prophecy, and claustrophobic isolation within a grand, eerie mansion.
-
B.
Ankeruhr
The Ankeruhr is an ornate Art Nouveau (Jugendstil) astronomical clock in Vienna, Austria, known for its moving historical figures that parade across its face at noon.
-
C.
The Dial
The Dial was a 19th-century American literary and philosophical magazine that served as the chief periodical voice of the Transcendentalist movement, publishing works by figures like Ralph Waldo Emerson and Henry David Thoreau.
-
D.
Zenith
Zenith is a Swiss luxury watch manufacturer renowned for its high-precision mechanical movements and chronographs.
-
E.
Hourglass
Hourglass is a Grammy-winning 1997 studio album by American singer-songwriter James Taylor that blends introspective lyrics with polished folk-rock and soft rock arrangements.
- 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: Sundial Target entity description: Sundial is a timekeeping device that uses the position of the sun’s shadow cast by a gnomon onto a marked surface to indicate the time of day.
-
A.
The Sundial
"The Sundial" is a darkly comic Gothic novel by Shirley Jackson that explores themes of family dysfunction, apocalyptic prophecy, and claustrophobic isolation within a grand, eerie mansion.
-
B.
Ankeruhr
The Ankeruhr is an ornate Art Nouveau (Jugendstil) astronomical clock in Vienna, Austria, known for its moving historical figures that parade across its face at noon.
-
C.
The Dial
The Dial was a 19th-century American literary and philosophical magazine that served as the chief periodical voice of the Transcendentalist movement, publishing works by figures like Ralph Waldo Emerson and Henry David Thoreau.
-
D.
Zenith
Zenith is a Swiss luxury watch manufacturer renowned for its high-precision mechanical movements and chronographs.
-
E.
Hourglass
Hourglass is a Grammy-winning 1997 studio album by American singer-songwriter James Taylor that blends introspective lyrics with polished folk-rock and soft rock arrangements.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
scientific instrument
ⓘ
timekeeping device ⓘ |
| canBe |
architectural feature
ⓘ
garden ornament ⓘ public monument ⓘ |
| canBeCorrectedTo | standard clock time ⓘ |
| correctionRequires |
equation of time
ⓘ
longitude difference from time zone meridian ⓘ |
| dependsOn |
Earth’s rotation
ⓘ
Sun’s apparent motion ⓘ |
| doesNotWorkIn |
darkness
ⓘ
heavy cloud cover ⓘ |
| gnomonAlignedWith | Earth’s rotational axis ⓘ |
| gnomonAngleDependsOn | geographic latitude ⓘ |
| hasHistoricalUseIn |
China
ⓘ
Islamic world ⓘ ancient Egypt ⓘ
linked to:
Pharaonic Egypt
ancient Greece ⓘ
linked to:
Greek Antiquity
ancient Rome ⓘ
linked to:
Roman Antiquity
|
| hasPart |
dial plate
ⓘ
gnomon ⓘ hour lines ⓘ scale markings ⓘ |
| hasType |
analemmatic sundial
ⓘ
armillary sundial ⓘ equatorial sundial ⓘ horizontal sundial ⓘ noon mark ⓘ polar sundial ⓘ portable sundial ⓘ vertical sundial ⓘ |
| indicates | time of day ⓘ |
| isCalibratedFor | specific latitude ⓘ |
| isRelatedTo |
astronomical clock
ⓘ
meridian line ⓘ solar compass ⓘ |
| isStudiedIn | gnomonics ⓘ |
| measures | local solar time ⓘ |
| operatesOn | apparent solar time ⓘ |
| precedes | mechanical clocks ⓘ |
| requires |
accurate layout of hour lines
ⓘ
proper orientation ⓘ sunlight ⓘ |
| usedFor |
astronomical observations
ⓘ
calibrating early clocks ⓘ regulating daily activities ⓘ |
| uses |
position of the Sun
ⓘ
shadow ⓘ |
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: Sundial Description of subject: Sundial is a timekeeping device that uses the position of the sun’s shadow cast by a gnomon onto a marked surface to indicate the time of day.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.