anchor.diff:  contingency_humanitarian_or_peacekeeping_operation,contingency_humanitarian_o,FALSE,str,,,
   contract_bundling,contract_bundling,FALSE,str,,,
   contract_financing,contract_financing,FALSE,str,,,
  -contracting_officer's_determination_of_business_size,contracting_officers_deter,FALSE,str,,,
  +contracting_officer_determination_of_business_size,contracting_officers_deter,FALSE,str,,,
   cost_accounting_standards_clause,cost_accounting_standards,FALSE,str,,,
   cost_or_pricing_data,cost_or_pricing_data,FALSE,str,,,
   country_of_product_or_service_origin,country_of_product_or_serv,FALSE,str,,,
  
positive.code: for_profit_organization,for_profit_organization,FALSE,str,,,
  nonprofit_organization,nonprofit_organization,FALSE,str,,,
  other_not_for_profit_organization,other_not_for_profit_organ,FALSE,str,,,
  u.s._local_government,us_local_government,FALSE,str,,,
  referenced_idv_modification_number,referenced_idv_modificatio,FALSE,str,,,
  undefinitized_action,undefinitized_action,FALSE,str,,,
  domestic_or_foreign_entity,domestic_or_foreign_entity,FALSE,str,,,
  
negative.code: sole_proprietorship,sole_proprietorship,FALSE,str,,,
  small_agricultural_cooperative,small_agricultural_coopera,FALSE,str,,,
  international_organization,international_organization,FALSE,str,,,
  us_government_entity,us_government_entity,FALSE,str,,,
  emerging_small_business,emerging_small_business,FALSE,str,,,
  c8a_program_participant,c8a_program_participant,FALSE,str,,,
  sba_certified_8a_joint_venture,sba_certified_8_a_joint_ve,FALSE,str,,,
  dot_certified_disadvantaged_business_enterprise,dot_certified_disadvantage,FALSE,str,,,
  self_certified_small_disadvantaged_business,self_certified_small_disad,FALSE,str,,,
  historically_underutilized_business_zone_hubzone_firm,historically_underutilized,FALSE,str,,,
  small_disadvantaged_business,small_disadvantaged_busine,FALSE,str,,,
  the_abilityone_program,the_ability_one_program,FALSE,str,,,
  historically_black_college_or_university,historically_black_college,FALSE,str,,,
  c1862_land_grant_college,c1862_land_grant_college,FALSE,str,,,
  c1890_land_grant_college,c1890_land_grant_college,FALSE,str,,,
  c1994_land_grant_college,c1994_land_grant_college,FALSE,str,,,
  minority_institution,minority_institution,FALSE,str,,,
  private_university_or_college,private_university_or_coll,FALSE,str,,,
  school_of_forestry,school_of_forestry,FALSE,str,,,
  