#anionic_detergent__anionicdetergent__anionic__nonionicdetergent  a class of synthetic detergents in which the molecules do not ionize in aqueous solutions
  supertype:  detergent  a surface-active chemical widely used in industry and laundering
     supertype:  wetting_agent__wettingagent__wetter__surfactant__surface-active_agent  a substance capable of reducing the surface tension of a liquid in which it is dissolved
        supertype:  chemical_agent  an agent that produces chemical reactions
           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:  thing_playing_some_role  category to classify things according to roles/viewpoints; classification under this category is application-dependant
                    supertype:  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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