bbb bbo bbr bbs bob boo bor bos brb bro brr brs bsb bso bsr bss ob- obb obo obr obs oo- oob ooo oor oos or- orb oro orr ors os- osb oso osr oss rbb rbo rbr rbs rob roo ror ros rrb rrr rrs rsb rso rsr rss sbb sbo sbr sbs sob soo sor sos sr- srb sro srr srs ss- ssb sso ssr sss

bbbb bbbs bobb bobo bobs boob boor boos bor- boro borr bors boso boss brob broo bror bros brrr brrs brsb brsr bsos obbo obor obos obro obsr obss oooo ooos orbb orbo orbs oro- oror oros orro orrs orso osoo osor osos osro ossb osso rbbb rbbr rbbs rbss rob- robb robo robs roob roor roos roro roso ross rrrr rsos s-os sbbs sbor sobo sobr sobs soor soos sorb soro sorr sors soso soss sros ssbr ssrs sssb ssss

bo-bo bobos bobr boobs boors borbo boro- boroo boros borro bosor bosso brobo brobs broos brrrr o-r-b oboro ooooo orobo oroso ososo ossos ro-ro robbo robbs robo- robor rosso rosss s-o-r so-so sobor sorbo sorbs soror soros sorso soss- sssrb sssss

bbbbbb bobbos booboo borbor bororo bososo brosso obsorb oooooo sobos soosoo sorors sorsor

bbbbbbb bobross boo-boo booboos oroboro sssssss

bbbbbbbb bo-bo-bo bobobobs

borborbor

bobbobbobs

bbbbbbbbbbbbbbb