%externals SN URL
%language EN
%baselanguage EN
%inverse NT BT
%inverse RT RT
%inverse USE UF
%inverse UF USE
%inverse BT NT
%description NT Narrower term
%description SN Scope note
%description RT Related term
%description USE Synonym
%description TT Top term
%description UF Quasi synonym
%description IS-A ...
%description BT Broader term
Animal
BT Carnivora
BT Felidae
BT Panthera
Carnivora
BT Felidae
BT Canidae
Panthera
NT Felidae
BT lion
BT tiger
lion
NT Panthera
Felidae
NT Carnivora
BT Panthera
BT Felis
tiger
NT Panthera
house_cat
NT Felis
Lucky
IS-A house_cat
Felis
NT Felidae
BT house_cat
Canidae
NT Carnivora