<synset id="n05577060" type="n">
<lex_filenum>08<lex_filenum/>
<word lex_id="0">sunken arch<word/>
<word lex_id="0">fallen arch<word/>
<pointer refs="n05576950">Hypernym<pointer/>
<def>an instep flattened so the entire sole rests on the ground<def/>
<synset/>