Line 19
E221623
Line 19 is a planned rapid transit line of the Shanghai Metro network intended to serve additional urban and suburban areas of the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 19 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1768707 — 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 19 Context triple: [Shanghai Metro, hasLine, Line 19]
-
A.
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.
-
B.
Line 18
Line 18 is a rapid transit line of the Shanghai Metro system serving various districts in Shanghai, China.
-
C.
Line 18
Line 18 is a high-speed rapid transit line of the Guangzhou Metro system in Guangzhou, China.
-
D.
Line 17
Line 17 is a rapid transit line of the Beijing Subway system designed to improve north–south connectivity across the city.
-
E.
Line 17
Line 17 is a suburban rapid transit line of the Shanghai Metro that primarily serves the western districts of the city, connecting urban Shanghai with outlying residential and developing areas.
- 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 19 Target entity description: Line 19 is a planned rapid transit line of the Shanghai Metro network intended to serve additional urban and suburban areas of the city.
-
A.
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.
-
B.
Line 18
Line 18 is a rapid transit line of the Shanghai Metro system serving various districts in Shanghai, China.
-
C.
Line 18
Line 18 is a high-speed rapid transit line of the Guangzhou Metro system in Guangzhou, China.
-
D.
Line 17
Line 17 is a rapid transit line of the Beijing Subway system designed to improve north–south connectivity across the city.
-
E.
Line 17
Line 17 is a suburban rapid transit line of the Shanghai Metro that primarily serves the western districts of the city, connecting urban Shanghai with outlying residential and developing areas.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf |
planned metro line
ⓘ
rapid transit line ⓘ |
| country | China ⓘ |
| intendedUse | mass transit for passengers ⓘ |
| lineNumber | 19 ⓘ |
| locatedIn | Shanghai ⓘ |
| networkRole | expansion of Shanghai Metro coverage ⓘ |
| owner |
Shanghai municipal authorities
ⓘ
linked to:
Shanghai Municipal People’s Government
|
| partOf | Shanghai Metro ⓘ |
| publicTransportType | metro line ⓘ |
| serves |
suburban areas of Shanghai
ⓘ
urban areas of Shanghai ⓘ |
| status | planned ⓘ |
| system | Shanghai Metro network ⓘ |
| transportMode | rapid transit ⓘ |
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 19 Description of subject: Line 19 is a planned rapid transit line of the Shanghai Metro network intended to serve additional urban and suburban areas of the city.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.