#semantic_relation  a relation between meanings
  supertype:  linguistic_relation  a relation between linguistic forms or constituents
  subtype:  hyponymy__subordination  the semantic relation of being subordinate or belonging to a lower rank or class
  subtype:  hypernymy  the semantic relation of being superordinate or belonging to a higher rank or class
  subtype:  synonymy__synonymity__synonymousness  the semantic relation that holds between two words that can (in a given context) express the same meaning
  subtype:  antonymy  the semantic relation that holds between two words that can (in a given context) express opposite meanings
  subtype:  holonymy__whole_to_part_relation  the semantic relation that holds between a whole and its parts
  subtype:  meronymy__part_to_whole_relation  the semantic relation that holds between a part and the whole
  subtype:  troponymy  the semantic relation of being a manner of does something

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