Line 18
E219966
Line 18 is a rapid transit line of the Shanghai Metro system serving various districts in Shanghai, China.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 18 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1768706 — 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: Line 18 Context triple: [Shanghai Metro, hasLine, Line 18]
-
A.
Line 18
Line 18 is a high-speed rapid transit line of the Guangzhou Metro system in Guangzhou, China.
-
B.
Line 19
Line 19 is a north–south rapid transit line of the Beijing Subway designed to improve connectivity between the city's central districts and its outer areas.
-
C.
Line 16
Line 16 is a rapid transit line of the Beijing Subway system serving parts of the city with modern, high-capacity metro service.
-
D.
Line 16
Line 16 is a suburban rapid transit line of the Shanghai Metro that connects central Shanghai with the southeastern outskirts, including the Lingang area.
-
E.
Line 17
Line 17 is a rapid transit line of the Beijing Subway system designed to improve north–south connectivity across the city.
- 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: Line 18 Target entity description: Line 18 is a rapid transit line of the Shanghai Metro system serving various districts in Shanghai, China.
-
A.
Line 18
Line 18 is a high-speed rapid transit line of the Guangzhou Metro system in Guangzhou, China.
-
B.
Line 19
Line 19 is a north–south rapid transit line of the Beijing Subway designed to improve connectivity between the city's central districts and its outer areas.
-
C.
Line 16
Line 16 is a rapid transit line of the Beijing Subway system serving parts of the city with modern, high-capacity metro service.
-
D.
Line 16
Line 16 is a suburban rapid transit line of the Shanghai Metro that connects central Shanghai with the southeastern outskirts, including the Lingang area.
-
E.
Line 17
Line 17 is a rapid transit line of the Beijing Subway system designed to improve north–south connectivity across the city.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
Shanghai Metro line
ⓘ
rapid transit line ⓘ |
| character | underground ⓘ |
| city | Shanghai ⓘ |
| continent | Asia ⓘ |
| country | China ⓘ |
| electrification |
1500 V DC
ⓘ
overhead line ⓘ |
| fareSystem | Shanghai Metro unified fare system ⓘ |
| hasColor | light green ⓘ |
| hasRollingStock | Shanghai Metro Type A trains ⓘ |
| lineNumber | 18 ⓘ |
| locatedIn |
China
ⓘ
Shanghai ⓘ |
| numberOfTracks | 2 ⓘ |
| operator | Shanghai Shentong Metro Group ⓘ |
| owner |
Shanghai municipal government
ⓘ
linked to:
Shanghai Municipal People’s Government
|
| partOf | Shanghai Metro ⓘ |
| publicTransportMode | rail ⓘ |
| serves | various districts of Shanghai ⓘ |
| signallingSystem | CBTC ⓘ |
| status | operational ⓘ |
| systemType | metro ⓘ |
| transitSystem | Shanghai Metro ⓘ |
| transportType | rapid transit ⓘ |
| uses | standard gauge track ⓘ |
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: Line 18 Description of subject: Line 18 is a rapid transit line of the Shanghai Metro system serving various districts in Shanghai, China.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.