Gerdab-e Sangi

E845938

Gerdab-e Sangi is an ancient stone whirlpool structure and water-management monument in Khorramabad, Iran, dating back to the Sassanid era.

All labels observed (1)

Label Occurrences
Gerdab-e Sangi canonical 1

Statements (45)

Predicate Object
instanceOf historical monument
water-management structure
age over 1400 years old
architecturalFeature central pool
inlet channels
outlet channels
stone walls
architecturalType circular structure
associatedWith Sassanid engineering
traditional water management
builtBy Sassanid authorities NERFINISHED
climateContext semi-arid region water management
constructionTechnique stone masonry
country Iran
culturalSignificance local landmark of Khorramabad
era late antiquity
feedsFrom underground springs
function water distribution
water regulation
water storage
governedBy Iranian Cultural Heritage, Handicrafts and Tourism Organization NERFINISHED
hasShape cylindrical
hasType archaeological site
hydraulic structure
heritagePeriod Sassanid era NERFINISHED
heritageStatus registered national monument of Iran
historicalUse regulating flow from springs
supplying water to nearby neighborhoods
locatedIn Lorestan Province NERFINISHED
western Iran NERFINISHED
location Khorramabad NERFINISHED
material stone
nameMeaning Stone Whirlpool NERFINISHED
near Falak-ol-Aflak Castle NERFINISHED
Khorramabad River NERFINISHED
openToPublic yes
partOf historical fabric of Khorramabad
preservationStatus partially restored
purpose controlling seasonal water flow
storing water for dry seasons
region Zagros Mountains area NERFINISHED
tourism visited by domestic tourists
visited by international tourists
usedFor irrigation support
urban water supply

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: Gerdab-e Sangi
Description of subject: Gerdab-e Sangi is an ancient stone whirlpool structure and water-management monument in Khorramabad, Iran, dating back to the Sassanid era.

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Khorramabad hasHistoricalSite Gerdab-e Sangi