<synset id="n01768244" type="n">
<lex_filenum>05<lex_filenum/>
<word lex_id="0">trilobite<word/>
<pointer refs="n01767661">Hypernym<pointer/>
<def>an extinct arthropod that was abundant in Paleozoic times<def/>
<def>had an exoskeleton divided into three parts<def/>
<synset/>