#Bordeaux_mixture  antifungal agent consisting of a solution of copper sulphate and quicklime
  supertype:  #antifungal_agent__antifungal__fungicide__antimycotic__antimycotic_agent__antimycoticagent  any agent that destroys or prevents the growth of fungi
     supertype:  #agent.causal_agent  a substance that exerts some force or effect
        supertype:  #causal_agent__cause__causal_agency  any entity that causes events to happen
           supertype:  pm#thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
              supertype:  pm#thing__something___T__t___3D_or_4D_thing_or_anything_else  any category (type or individual) is instance of this type; any type is also a subtype of this type

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