bbbb bbbs bbhs bhhs bnhs bnss bobb bobo bobs bohn boho bohs bonn bono bons boob booh boon boos bosh bosn boso boss bshs bsns bson bsos hbbs hbhs hbos hbss hhhh hhhs hnhs hobo hobs hohn hoho hono hons hoon hoos hosh hoss hshs hsob hson nbbo nbhs nhhs nhnn nhon nnhs nnnn nnos nnss nobo nobs nohn noho nohs non- nonn nono nons noo- noob noon nooo noos nos- nosh noss nsbo nshs nsos nssb nsso nsss obbo obhs obon obos obsn obss ohho ohhs ohno ohob ohoh ohos ohso ohss onno onon onos onso ooho oohs oons oooh oooo ooos osho oshs osno osoo osos ossb osso s-os sbbs sbhs shbs shhh shhs shon shoo shos snhs snns snob snoo snos sobo sobs sohh sohn soho sohs son- sono sons soon soos sosh soso soss ssbn sshs ssns sssb sssh ssss