Qinghai–Tibet Railway
E395904
The Qinghai–Tibet Railway is a high-altitude rail line in China that connects Xining in Qinghai Province to Lhasa in Tibet, renowned for traversing some of the world’s highest terrain and permafrost regions.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Qinghai–Tibet Railway canonical | 9 |
| Qinghai–Tibet Railway network | 1 |
| Qinghai–Tibet passenger trains | 1 |
| Qingzang Railway | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3865617 — 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: Qinghai–Tibet Railway Context triple: [Tanggula Mountains, crossedBy, Qinghai–Tibet Railway]
-
A.
Longhai Railway
Longhai Railway is a major east–west rail corridor in China that connects key cities across several provinces and serves as an important artery for national transportation and commerce.
-
B.
Beijing–Guangzhou Railway
The Beijing–Guangzhou Railway is one of China’s longest and most important north–south trunk rail lines, connecting the capital Beijing with the major southern metropolis of Guangzhou and serving numerous key cities along its route.
-
C.
Shanghai–Kunming railway
The Shanghai–Kunming railway is a major east–west trunk line in China that connects the coastal metropolis of Shanghai with the southwestern city of Kunming, traversing several key provinces and economic regions.
-
D.
Beijing–Shanghai High-Speed Railway
The Beijing–Shanghai High-Speed Railway is a major high-speed rail corridor in China that connects the capital Beijing with the economic hub Shanghai, significantly reducing travel time between the two megacities.
-
E.
Beijing–Shanghai railway
The Beijing–Shanghai railway is one of China’s most important conventional rail lines, connecting the capital Beijing with the major economic hub of Shanghai and serving numerous key cities along its route.
- 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: Qinghai–Tibet Railway Target entity description: The Qinghai–Tibet Railway is a high-altitude rail line in China that connects Xining in Qinghai Province to Lhasa in Tibet, renowned for traversing some of the world’s highest terrain and permafrost regions.
-
A.
Longhai Railway
Longhai Railway is a major east–west rail corridor in China that connects key cities across several provinces and serves as an important artery for national transportation and commerce.
-
B.
Beijing–Guangzhou Railway
The Beijing–Guangzhou Railway is one of China’s longest and most important north–south trunk rail lines, connecting the capital Beijing with the major southern metropolis of Guangzhou and serving numerous key cities along its route.
-
C.
Shanghai–Kunming railway
The Shanghai–Kunming railway is a major east–west trunk line in China that connects the coastal metropolis of Shanghai with the southwestern city of Kunming, traversing several key provinces and economic regions.
-
D.
Beijing–Shanghai High-Speed Railway
The Beijing–Shanghai High-Speed Railway is a major high-speed rail corridor in China that connects the capital Beijing with the economic hub Shanghai, significantly reducing travel time between the two megacities.
-
E.
Beijing–Shanghai railway
The Beijing–Shanghai railway is one of China’s most important conventional rail lines, connecting the capital Beijing with the major economic hub of Shanghai and serving numerous key cities along its route.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
freight rail line
ⓘ
passenger rail line ⓘ railway line ⓘ |
| altitudeRange_m | from about 2200 to over 5000 ⓘ |
| connects |
Lhasa
ⓘ
Xining ⓘ |
| constructionStartDate | 2001 ⓘ |
| country | China ⓘ |
| crosses |
Kunlun Mountains
ⓘ
Tanggula Mountains ⓘ |
| designedFor | operation at high altitude ⓘ |
| electrification | non-electrified ⓘ |
| environmentalConcern | impact on fragile plateau ecosystem ⓘ |
| gauge | standard gauge ⓘ |
| hasBridge |
Qinghai–Tibet Railway Bridge over the Lhasa River
ⓘ
Qingshuihe Bridge ⓘ |
| hasFacility |
onboard oxygen supply in passenger coaches
ⓘ
sealed passenger cabins for high altitude ⓘ |
| hasStation |
Golmud Railway Station
ⓘ
Lhasa Railway Station ⓘ Tanggula railway station ⓘ
surface form:
Nagqu Railway Station
Xining Railway Station ⓘ |
| hasTunnel |
Fenghuoshan Tunnel
ⓘ
Fenghuoshan Tunnel ⓘ
surface form:
Kunlun Mountain Tunnel
|
| highestPoint_elevation_m | about 5072 ⓘ |
| highestPoint_name | Tanggula Pass ⓘ |
| knownAs |
Qinghai–Tibet Railway
ⓘ
surface form:
Qingzang Railway
|
| language | zh ⓘ |
| locatedIn |
Qinghai
ⓘ
surface form:
Qinghai Province
Tibet Autonomous Region ⓘ |
| notableFeature |
crosses extensive permafrost regions
ⓘ
high-altitude engineering ⓘ world’s highest railway in long-distance operation ⓘ |
| openedForPassengerService | 2006-07-01 ⓘ |
| openingDate | 2006-07-01 ⓘ |
| operator | China Railway ⓘ |
| partOf |
Trans-China railway network
ⓘ
surface form:
Chinese national railway network
|
| passesThrough |
Golmud
ⓘ
Nagqu ⓘ Tanggula Mountains ⓘ |
| purpose |
improve transport links to Tibet
ⓘ
support economic development in Tibet ⓘ |
| region |
Tibetan Plateau
ⓘ
surface form:
Qinghai–Tibet Plateau
|
| status | in operation ⓘ |
| terminusA | Xining ⓘ |
| terminusB | Lhasa ⓘ |
| totalLength_km | about 1956 ⓘ |
| trackConfiguration | single track ⓘ |
| usesTechnology |
cooling systems to stabilize permafrost
ⓘ
elevated track on permafrost ⓘ |
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: Qinghai–Tibet Railway Description of subject: The Qinghai–Tibet Railway is a high-altitude rail line in China that connects Xining in Qinghai Province to Lhasa in Tibet, renowned for traversing some of the world’s highest terrain and permafrost regions.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Qingzang Railway
this entity surface form:
Qinghai–Tibet Railway network
this entity surface form:
Qinghai–Tibet passenger trains