bbbb bbbs bbhs bhhs bhor bobb bobo bobs boho bohr bohs boob booh boor boos bor- borh boro borr bors bosh boso boss brhs brob broh broo bror bros brrr brrs brsb brsr bshs bsos hbbs hbhs hbos hbrs hbss hhhh hhhs hobo hobs hoho hoor hoos horo horr hors hosh hoss hrhs hrob hros hrso hshs hsob obbo obhs obor obos obrh obro obsr obss ohho ohhs ohob ohoh ohos ohso ohss ooho oohs oooh oooo ooos orbb orbo orbs orhs oro- oror oros orro orrs orso osho oshs osoo osor osos osro ossb osso rbbb rbbr rbbs rbhs rboh rbss rhhs rhob rhoh rhos rob- robb robo robs rohr rohs roob roor roos roro rosh roso ross rrhs rrrr rshs rsos s-os sbbs sbhs sbor shbs shhh shhs shoo shor shos shrs sobo sobr sobs sohh soho sohs soor soos sorb sorh soro sorr sors sosh soso soss srhs sros ssbr sshs ssrs sssb sssh ssss