Siloam Tunnel
E464106
The Siloam Tunnel is an ancient water channel in Jerusalem, traditionally dated to the reign of King Hezekiah, engineered to secure the city’s water supply by diverting the Gihon Spring to the Pool of Siloam.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Siloam Tunnel canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4717418 — 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: Siloam Tunnel Context triple: [City of David archaeological area, contains, Siloam Tunnel]
-
A.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
B.
New York City Water Tunnel No. 1
New York City Water Tunnel No. 1 is a major underground aqueduct that transports drinking water from upstate reservoirs to New York City.
-
C.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
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D.
New York City Water Tunnel No. 2
New York City Water Tunnel No. 2 is a major underground aqueduct that transports drinking water from upstate reservoirs to the city as part of its extensive water distribution network.
-
E.
Mosier Twin Tunnels segment
The Mosier Twin Tunnels segment is a scenic, car-free stretch of trail in the Columbia River Gorge that passes through restored historic highway tunnels and offers dramatic river and cliffside views.
- 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: Siloam Tunnel Target entity description: The Siloam Tunnel is an ancient water channel in Jerusalem, traditionally dated to the reign of King Hezekiah, engineered to secure the city’s water supply by diverting the Gihon Spring to the Pool of Siloam.
-
A.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
B.
New York City Water Tunnel No. 1
New York City Water Tunnel No. 1 is a major underground aqueduct that transports drinking water from upstate reservoirs to New York City.
-
C.
Clyde Tunnel
The Clyde Tunnel is a road tunnel in Glasgow, Scotland, carrying vehicular traffic beneath the River Clyde to connect the city’s north and south banks.
-
D.
New York City Water Tunnel No. 2
New York City Water Tunnel No. 2 is a major underground aqueduct that transports drinking water from upstate reservoirs to the city as part of its extensive water distribution network.
-
E.
Mosier Twin Tunnels segment
The Mosier Twin Tunnels segment is a scenic, car-free stretch of trail in the Columbia River Gorge that passes through restored historic highway tunnels and offers dramatic river and cliffside views.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
ancient water tunnel
ⓘ
archaeological site ⓘ tourist attraction ⓘ |
| archaeologicalSignificance | evidence of Iron Age II water engineering ⓘ |
| associatedWith |
Hezekiah
NERFINISHED
ⓘ
Kingdom of Judah NERFINISHED ⓘ |
| connects |
Gihon Spring
NERFINISHED
ⓘ
Pool of Siloam NERFINISHED ⓘ |
| constructionMaterial | limestone bedrock ⓘ |
| constructionMethod | rock-cut tunnel ⓘ |
| country | Israel ⓘ |
| culturalSignificance | important for understanding biblical Jerusalem ⓘ |
| datingMethod |
palaeography of Siloam Inscription
ⓘ
radiocarbon dating of organic material ⓘ |
| discoveredByModernScholars | 19th century explorers ⓘ |
| engineeringFeature |
excavated from both ends
ⓘ
slight gradient for water flow ⓘ |
| function |
aqueduct
ⓘ
defensive water system ⓘ |
| gradient | about 0.6% ⓘ |
| hasInscription | Siloam Inscription NERFINISHED ⓘ |
| height | about 1.6 meters average ⓘ |
| inscriptionContent | describes meeting of two teams of diggers ⓘ |
| inscriptionLanguage | ancient Hebrew ⓘ |
| inscriptionScript | Paleo-Hebrew script ⓘ |
| length |
about 1750 feet
ⓘ
about 533 meters ⓘ |
| locatedIn |
City of David
NERFINISHED
ⓘ
Jerusalem ⓘ |
| managedBy | Israel Nature and Parks Authority NERFINISHED ⓘ |
| mentionedIn |
Tanakh
ⓘ
surface form:
Hebrew Bible
|
| nearbySite |
City of David Archaeological Park
NERFINISHED
ⓘ
Gihon Spring NERFINISHED ⓘ Pool of Siloam NERFINISHED ⓘ |
| notableExplorer |
Charles Warren
NERFINISHED
ⓘ
Edward Robinson NERFINISHED ⓘ |
| openToPublic | yes ⓘ |
| possibleBiblicalReference |
2 Chronicles 32:30
ⓘ
2 Kings 20:20 ⓘ |
| purpose |
to divert water into the city during siege
ⓘ
to secure Jerusalem’s water supply ⓘ |
| region | Levant NERFINISHED ⓘ |
| touristActivity | wet walking tour ⓘ |
| traditionalDating | reign of King Hezekiah ⓘ |
| UNESCOTentativeList | Old City of Jerusalem and its Walls NERFINISHED ⓘ |
| waterDestination | Pool of Siloam NERFINISHED ⓘ |
| waterSource | Gihon Spring NERFINISHED ⓘ |
| width | about 0.6 meters 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: Siloam Tunnel Description of subject: The Siloam Tunnel is an ancient water channel in Jerusalem, traditionally dated to the reign of King Hezekiah, engineered to secure the city’s water supply by diverting the Gihon Spring to the Pool of Siloam.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.