#price_support__pricesupport  a government subsidy used to maintain prices at a certain level
  supertype:  subsidy  a grant paid by a government to an enterprise that benefits the public: "a subsidy for research in artificial intelligence"
     supertype:  grant  any monetary aid
        supertype:  economic_aid__aid  a gift of money to support a worthy person or cause
           supertype:  gift  something acquired without compensation
              supertype:  acquisition.transferred_property  something acquired; "a recent acquisition by the museum"
                 supertype:  transferred_property__transferredproperty__transferred_possession__transferredpossession  a possession whose ownership changes or lapses
                    supertype:  possession  anything owned or possessed
                       supertype:  owned_entity__ownedentity
                          supertype:  entity_playing_some_role  e.g., an agent, an owner
                             supertype:  entity  something that can be "involved" in a situation
                                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
                             supertype:  thing_that_can_be_seen_as_a_relation  usable as relation type
                                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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