<synset id="n03344642" type="n">
<lex_filenum>06<lex_filenum/>
<word lex_id="0">firebrick<word/>
<pointer refs="n02897820">Hypernym<pointer/>
<pointer refs="n14813843">Substance meronym<pointer/>
<def>brick made of fire clay<def/>
<def>used for lining e.g. furnaces and chimneys<def/>
<synset/>