C40
E42209
C40 is a global network of major cities collaborating to address climate change and drive urban climate leadership.
All labels observed (1)
| Label | Occurrences |
|---|---|
| C40 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T325630 — 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: C40 Context triple: [C40 Cities Climate Leadership Group, alsoKnownAs, C40]
-
A.
B Reactor
B Reactor is the world’s first full-scale plutonium production reactor, built during the Manhattan Project at the Hanford Site in Washington State.
-
B.
CP-140 Aurora
The CP-140 Aurora is a Canadian long-range maritime patrol and anti-submarine warfare aircraft based on the Lockheed P-3 Orion airframe and used primarily for surveillance and reconnaissance missions.
-
C.
CIT
CIT is the commonly used acronym for the Center for Information Technology, an organization focused on advancing computing and information systems.
-
D.
D Reactor
D Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
-
E.
Dynamo
Dynamo is a prominent Russian sports club based in Moscow, best known for its professional football and ice hockey teams.
- 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: C40 Target entity description: C40 is a global network of major cities collaborating to address climate change and drive urban climate leadership.
-
A.
B Reactor
B Reactor is the world’s first full-scale plutonium production reactor, built during the Manhattan Project at the Hanford Site in Washington State.
-
B.
CP-140 Aurora
The CP-140 Aurora is a Canadian long-range maritime patrol and anti-submarine warfare aircraft based on the Lockheed P-3 Orion airframe and used primarily for surveillance and reconnaissance missions.
-
C.
CIT
CIT is the commonly used acronym for the Center for Information Technology, an organization focused on advancing computing and information systems.
-
D.
D Reactor
D Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
-
E.
Dynamo
Dynamo is a prominent Russian sports club based in Moscow, best known for its professional football and ice hockey teams.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
city network
ⓘ
climate change organization ⓘ international non-governmental organization ⓘ |
| activity |
advocacy in international climate negotiations
ⓘ
data collection and reporting on city emissions ⓘ knowledge sharing among cities ⓘ policy development ⓘ technical assistance to cities ⓘ |
| collaboratesWith |
ICLEI – Local Governments for Sustainability
ⓘ
OECD ⓘ UN-Habitat ⓘ
linked to:
United Nations Human Settlements Programme
World Resources Institute ⓘ |
| describedAs | global network of major cities collaborating to address climate change and drive urban climate leadership ⓘ |
| focusesOn |
air quality improvement
ⓘ
climate change adaptation ⓘ climate change mitigation ⓘ climate leadership ⓘ greenhouse gas emissions reduction ⓘ resilient cities ⓘ urban sustainability ⓘ |
| foundedAs | C20 ⓘ |
| foundedBy | Ken Livingstone ⓘ |
| founderRole | Mayor of London ⓘ |
| fullName | C40 Cities Climate Leadership Group ⓘ |
| goal |
achieve net-zero emissions in member cities
ⓘ
limit global temperature rise in line with the Paris Agreement ⓘ promote equitable climate action ⓘ |
| hasLanguage | English ⓘ |
| hasMember | major cities ⓘ |
| hasMemberType |
large cities
ⓘ
megacities ⓘ |
| headquartersLocation |
London
ⓘ
linked to:
London, England
United Kingdom ⓘ |
| inception | 2005 ⓘ |
| legalForm | non-profit organization ⓘ |
| memberOf | Global Covenant of Mayors for Climate & Energy ⓘ |
| operatesIn | global ⓘ |
| sector |
climate policy
ⓘ
environment ⓘ urban policy ⓘ |
| shortName | C40 ⓘ |
| website | https://www.c40.org ⓘ |
| worksWith |
business partners
ⓘ
city governments ⓘ civil society organizations ⓘ international organizations ⓘ mayors ⓘ |
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: C40 Description of subject: C40 is a global network of major cities collaborating to address climate change and drive urban climate leadership.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.