<synset id="n09280236" type="n">
<lex_filenum>17<lex_filenum/>
<word lex_id="0">firestone<word/>
<pointer refs="n14995541">Hypernym<pointer/>
<def>a sandstone that withstands intense heat<def/>
<def>used to line fireplaces and furnaces and kilns<def/>
<synset/>