<synset id="n03556992" type="n">
<lex_filenum>06<lex_filenum/>
<word lex_id="0">icebreaker<word/>
<word lex_id="0">iceboat<word/>
<pointer refs="n04194289">Hypernym<pointer/>
<def>a ship with a reinforced bow to break up ice and keep channels open for navigation<def/>
<synset/>