#fifth_column__fifthcolumn__trojanhorse  a subversive group that supports the enemy and engages in espionage or sabotage; an enemy in your midst
  supertype:  social_unit__unit  an organization regarded as part of a larger social group; "the coach said the offensive unit did a good job"; "after the battle the soldier had trouble rejoining his unit"
  member:  fifth_columnist__fifthcolumnist__saboteur  a member of a clandestine subversive organization who tries to help a potential invader

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