<synset id="n02690809" type="n">
<lex_filenum>06<lex_filenum/>
<word lex_id="0">air mattress<word/>
<pointer refs="n03731164">Hypernym<pointer/>
<pointer refs="n03668803">Hyponym<pointer/>
<def>a mattress that can be stored flat and inflated for use<def/>
<synset/>