astra[6], rasta[6], stara[6], taras[6], trasa[6], rastr[6], arras[5],
arat[5], atar[5], rata[5], tara[5], astr[5], star[5], tras[5], arsa[4], rasa[4],
ata[4], rat[4], tar[4], tra[4], ara[3], asa[3], ars[3], ras[3], sra[3],
at[3], ta[3], ts[3], aa[2], ar[2], as[2],
