Hezekiah’s Tunnel
E464105
Hezekiah’s Tunnel is an ancient water channel in Jerusalem, carved in the 8th century BCE to secure the city’s water supply by diverting the Gihon Spring to the Pool of Siloam.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Hezekiah’s Tunnel canonical | 5 |
| Hezekiah Tunnel | 1 |
| Hezekiah’s tunnel | 1 |
| Jerusalem water system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4717417 — 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: Hezekiah’s Tunnel Context triple: [City of David archaeological area, contains, Hezekiah’s Tunnel]
-
A.
Zion–Mount Carmel Tunnel
The Zion–Mount Carmel Tunnel is a historic, mile-long roadway tunnel carved through sandstone cliffs in Utah’s Zion National Park, renowned for its dramatic engineering and scenic views along the park’s main east–west route.
-
B.
Chebar canal
The Chebar canal is an ancient waterway in Babylonia traditionally identified as the place where the prophet Ezekiel received his visions during the Jewish exile.
-
C.
Al Shindagha Tunnel
Al Shindagha Tunnel is a major underwater road tunnel in Dubai that carries vehicular traffic beneath Dubai Creek, connecting the historic districts of the city.
-
D.
Cave of Elijah
The Cave of Elijah is a revered pilgrimage site on Mount Carmel in Haifa, traditionally believed to be a place where the biblical prophet Elijah lived and prayed.
-
E.
Egyptian Gates
Egyptian Gates is a notable Egyptian Revival-style architectural monument in Saint Petersburg, Russia, featuring massive cast-iron pylons and decorative motifs inspired by ancient Egypt.
- 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: Hezekiah’s Tunnel Target entity description: Hezekiah’s Tunnel is an ancient water channel in Jerusalem, carved in the 8th century BCE to secure the city’s water supply by diverting the Gihon Spring to the Pool of Siloam.
-
A.
Zion–Mount Carmel Tunnel
The Zion–Mount Carmel Tunnel is a historic, mile-long roadway tunnel carved through sandstone cliffs in Utah’s Zion National Park, renowned for its dramatic engineering and scenic views along the park’s main east–west route.
-
B.
Chebar canal
The Chebar canal is an ancient waterway in Babylonia traditionally identified as the place where the prophet Ezekiel received his visions during the Jewish exile.
-
C.
Al Shindagha Tunnel
Al Shindagha Tunnel is a major underwater road tunnel in Dubai that carries vehicular traffic beneath Dubai Creek, connecting the historic districts of the city.
-
D.
Cave of Elijah
The Cave of Elijah is a revered pilgrimage site on Mount Carmel in Haifa, traditionally believed to be a place where the biblical prophet Elijah lived and prayed.
-
E.
Egyptian Gates
Egyptian Gates is a notable Egyptian Revival-style architectural monument in Saint Petersburg, Russia, featuring massive cast-iron pylons and decorative motifs inspired by ancient Egypt.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
ancient water tunnel
ⓘ
archaeological site ⓘ tourist attraction ⓘ |
| alternativeName | Siloam Tunnel ⓘ |
| alternativeSpelling |
Hezekiah Tunnel
ⓘ
linked to:
Hezekiah’s Tunnel
Hezekiah’s Tunnel ⓘ |
| associatedWithEvent | Assyrian siege preparations ⓘ |
| biblicalFunction | to bring water into the city ⓘ |
| cityType | ancient Jerusalem fortifications ⓘ |
| constructedInCentury | 8th century BCE ⓘ |
| constructedInPeriod | Iron Age II ⓘ |
| constructedUnderRuleOf |
King Hezekiah of Judah
ⓘ
linked to:
Hezekiah
|
| constructionDateRange | late 8th century BCE ⓘ |
| constructionMethod |
carved through bedrock
ⓘ
dug from both ends and met in the middle ⓘ |
| country | Israel ⓘ |
| datingMethod |
epigraphic analysis of the Siloam Inscription
ⓘ
radiocarbon dating of organic material ⓘ |
| hasFeature | Siloam Inscription ⓘ |
| height | about 1.8 meters on average ⓘ |
| heritageStatus | part of the City of David archaeological park ⓘ |
| inscriptionContent | describes the meeting of the two teams of diggers ⓘ |
| inscriptionLanguage | ancient Hebrew ⓘ |
| inscriptionLocation | near the southern end of the tunnel ⓘ |
| inscriptionName | Siloam Inscription ⓘ |
| length |
approximately 1750 feet
ⓘ
approximately 533 meters ⓘ |
| locatedIn |
City of David
ⓘ
linked to:
City of David archaeological area
Jerusalem ⓘ |
| managedBy | Israel Nature and Parks Authority ⓘ |
| material | limestone bedrock ⓘ |
| mentionedIn |
Hebrew Bible
ⓘ
linked to:
Tanakh
|
| mentionedInBook |
2 Chronicles
ⓘ
2 Kings ⓘ
linked to:
Book of 2 Kings
|
| nearbySite |
City of David Visitors Center
ⓘ
linked to:
City of David archaeological area
Gihon Spring ⓘ Pool of Siloam ⓘ |
| openToPublic | true ⓘ |
| purpose |
divert water from the Gihon Spring to the Pool of Siloam
ⓘ
secure Jerusalem’s water supply ⓘ |
| region | Middle East ⓘ |
| strategicRole | protected water supply during siege ⓘ |
| touristActivity | walking through water-filled tunnel ⓘ |
| waterDepth | varies, often up to the knees or thighs ⓘ |
| waterDestination | Pool of Siloam ⓘ |
| waterSource | Gihon Spring ⓘ |
| width | about 0.6 meters on average ⓘ |
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: Hezekiah’s Tunnel Description of subject: Hezekiah’s Tunnel is an ancient water channel in Jerusalem, carved in the 8th century BCE to secure the city’s water supply by diverting the Gihon Spring to the Pool of Siloam.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Hezekiah’s Tunnel
linked to: Hezekiah’s Tunnel
linked to: Hezekiah’s Tunnel