City Wall of Xi'an
E137855
The City Wall of Xi'an is one of the oldest, largest, and best-preserved ancient city walls in China, encircling the historic center of Xi'an with massive fortifications dating back to the Ming dynasty.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Ancient City Wall of Xi'an | 1 |
| City Wall of Xi'an canonical | 1 |
| Fortifications of Xi'an | 1 |
| Xi'an city wall | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1207227 — 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: City Wall of Xi'an Context triple: [Xi'an, contains, City Wall of Xi'an]
-
A.
Great Wall of China
The Great Wall of China is an ancient, monumental series of fortifications stretching thousands of kilometers across northern China, built and rebuilt over centuries to protect Chinese states and empires from invasions.
-
B.
Juyongguan
Juyongguan is a famous mountain pass northwest of Beijing that hosts one of the most visited and historically significant sections of the Great Wall of China.
-
C.
Parque de la Muralla
Parque de la Muralla is a public park in Lima, Peru, known for showcasing remnants of the city’s colonial defensive walls alongside landscaped green areas and cultural spaces.
-
D.
Tiananmen Gate
Tiananmen Gate is the historic ceremonial entrance to Beijing’s Forbidden City and a national symbol of China, prominently overlooking Tiananmen Square.
-
E.
Forbidden City
The Forbidden City is a vast imperial palace complex in central Beijing that served as the political and ceremonial heart of Chinese dynasties for nearly 500 years and is now a major cultural and historical museum.
- 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: City Wall of Xi'an Target entity description: The City Wall of Xi'an is one of the oldest, largest, and best-preserved ancient city walls in China, encircling the historic center of Xi'an with massive fortifications dating back to the Ming dynasty.
-
A.
Great Wall of China
The Great Wall of China is an ancient, monumental series of fortifications stretching thousands of kilometers across northern China, built and rebuilt over centuries to protect Chinese states and empires from invasions.
-
B.
Juyongguan
Juyongguan is a famous mountain pass northwest of Beijing that hosts one of the most visited and historically significant sections of the Great Wall of China.
-
C.
Parque de la Muralla
Parque de la Muralla is a public park in Lima, Peru, known for showcasing remnants of the city’s colonial defensive walls alongside landscaped green areas and cultural spaces.
-
D.
Tiananmen Gate
Tiananmen Gate is the historic ceremonial entrance to Beijing’s Forbidden City and a national symbol of China, prominently overlooking Tiananmen Square.
-
E.
Forbidden City
The Forbidden City is a vast imperial palace complex in central Beijing that served as the political and ceremonial heart of Chinese dynasties for nearly 500 years and is now a major cultural and historical museum.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
city wall
ⓘ
cultural heritage site ⓘ fortification ⓘ tourist attraction ⓘ |
| architecturalStyle | Ming dynasty military architecture ⓘ |
| builtDuring | Ming dynasty ⓘ |
| builtUnder | Hongwu Emperor ⓘ |
| country | China ⓘ |
| currentUse |
recreational walking and cycling route
ⓘ
tourism ⓘ |
| encloses |
X’ian, China
ⓘ
surface form:
old city of Xi'an
|
| era | late 14th century ⓘ |
| function | city defense ⓘ |
| hasPart |
East Gate
ⓘ
North Gate ⓘ South Gate ⓘ West Gate ⓘ barbican ⓘ battlement ⓘ corner tower ⓘ drawbridge ⓘ gate tower ⓘ moat ⓘ rampart ⓘ watchtower ⓘ |
| height | approximately 12 meters ⓘ |
| heritageDesignation |
Major Historical and Cultural Site Protected at the National Level in China
ⓘ
National 5A Tourist Attraction of China ⓘ |
| length | approximately 13.7 kilometers ⓘ |
| locatedIn |
Shaanxi Province
ⓘ
surface form:
Shaanxi
X’ian, China ⓘ
surface form:
Xi'an
historic center of Xi'an ⓘ |
| locatedInTimeZone | China Standard Time ⓘ |
| locatedOn |
Guanzhong region
ⓘ
surface form:
Guanzhong Plain
|
| materialUsed |
brick
ⓘ
rammed earth ⓘ stone ⓘ |
| near |
Bell Tower of Xi'an
ⓘ
Drum Tower of Xi'an ⓘ |
| notableFor |
being one of the best-preserved ancient city walls in China
ⓘ
large scale and completeness ⓘ |
| numberOfGates | 4 ⓘ |
| numberOfWatchtowers | over 90 ⓘ |
| partOf | historic city of Xi'an ⓘ |
| shape | rectangular ⓘ |
| startOfConstruction | 1370 ⓘ |
| touristActivity |
bicycle rental on the wall
ⓘ
cultural performances at South Gate ⓘ |
| widthAtBase | approximately 15 to 18 meters ⓘ |
| widthAtTop | approximately 12 to 14 meters ⓘ |
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: City Wall of Xi'an Description of subject: The City Wall of Xi'an is one of the oldest, largest, and best-preserved ancient city walls in China, encircling the historic center of Xi'an with massive fortifications dating back to the Ming dynasty.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Xi'an
subject surface form:
Xi'an
this entity surface form:
Fortifications of Xi'an
this entity surface form:
Ancient City Wall of Xi'an
this entity surface form:
Xi'an city wall