kloos kloss ko-ko kokko kokos kokou koksu kolks kollo kollu kolol kolos kolsk kooks kools koolu kosku kosso koulo kukko kukok kuksu kullo kullu kulul kulus kusuo kuusk lollo lolls lolol lolos looks lools loosu losku louss lukko lukok lukou lulls lulul lulus lusks luso- lusso lusus okuku olous olsok ooooo oskol ososo ossos osusu oullo s-k-o skoko skoll skols skool skulk skull sloos sloss slouk sluss so-lo so-so sokol sokos solok solos soluk solus sooks soolu soss- sosus souks soulo souls sous- sssss sukko sukuk sulks sulls suluk sulus susso susuk susus ulous ululu us-ks uskok uuuuu