-ose bbbb bbbs bbeb bebb bebe bebo beeb beef beek bees befe beff befo beke beko beks beo- beof beok beos bes- bese besk beso bess bffs bobb bobe bobo bobs boee boef boeo boes bofe boff bofs boke boko boks boob booe boof book boos bose bosk boso boss bseb bsee bses bsff bsfs bsos bsse ebbo ebbs ebes eboe eboo ebos eeee eees eefe eeke eeks eese eesk efeo efes effs efke ekeb ekek ekes ekos eoes esbo esbs esee esek eseo eses esfs eske esko esks eso- esok esos esse esso f--k febo febs feeb feek fees fefe feff fefo feke feko feof fese fess ffee ffff ffss fobs foes fofo foke foof fook foos fosb foso foss fsfo fssf k-os kbbb kbbe kbbf kbbk kbbo kbbs kbeb kbee kbef kbek kbeo kbes kbfb kbff kbfk kbfo kbfs kbkb kbkf kbkk kbko kbob kboe kbok kboo kbos kbsb kbsk kbso kbss kebb kebe keef keek kees kefb keff kefs kekb keke keko keks keok keos kesb kesk keso kess kfbk kfeb kffb kfff kffk kfkb kfok kfoo kfse kfsk kkbb kkbe kkbo kkbs kkfs kkkk kkob kkoo kkse kksf kkss kobb kobe kobk kobo kobs koes kofe koff kofk kofo kokb koke kokf kokk koko koks koob kook kooo koos kos- kosb kose kosf koso koss ksbs ksee ksek kseo ksfb ksfe ksfo kskb kske kskf kskk ksko ksks ksob ksof ksok ksoo ksos ksse ksso ksss o-eo obbo obes obkb oboe obok obos obss oese ofek off- offe offo offs okes okko okok okso oobe ooes ooff oofs oooo ooos oose osbe osee osek oses osoo osos ossb osse osso s-os sbbs sbef sbse se-e se-f se-k se-o se-s sebe sebo sebs seeb seef seek sees seff seke sekk seko seok sese seso sess sfos sfss skee skeo skes skoe skss sobe sobo sobs soeo soes sofo soke sokk soko soof sook soos sose soso soss ssee sses sssb sssf ssss