bbb bbo bbr bbt bbx bob boo bor bot box brb bro brr brt brx btb bto btr btt btx bxb bxo bxx ob- obb obo obr obt obx oo- oob ooo oor oot oox or- orb oro orr ort orx ot- otb oto otr ott ox- oxb oxo oxt oxx rbb rbo rbr rbt rbx rob roo ror rot rox rrb rrr rrt rtb rto rtr rtt rtx rxr t-x tbb tbo tbr tbt to- tob too tor tot tox trb tro trr trt trx ttb tto ttr ttt ttx txt xbr xbx xoo xor xot xox xrt xrx xtr xtx xxo xxx

bbbb bbox bobb bobo boob boor boot boox bor- boro borr bort botb boto bott brob broo bror brot brox brrr btob btor btrt bttb obbo obor obot obox obro oooo oort ootb orbb orbo oro- oror orot orro orto oto- otoo otor otro otto oxo- oxox oxxo rbbb rbbr rob- robb robo robt roob roor root roox roro rort roto rotr rott roxo rrrr tbox tbrb tobo tobt toor toot toro torr tort torx toto totr tott tox- toxo toxt troo trot trox trtr ttbb tttt txtr xbox xoro xoxo xtro xxxo xxxx

bo-bo bobr boort bootx borbo boro- boroo borot borox borro botox botro brobo broto brrrr btr-t o-r-b oboro ooooo orbot orobo ortoo ototo ro-ro robbo robo- robor robot robrt roto- rotor rotot rotox rotto t-box tbtbt tobor tobot torob torro torto toto- totoo toxo- trott ttttt x-box xbxrx xootr xorro xotox xoxox xtort

bbbbbb booboo borbor bororo botoro brotto oooooo ottoor roboto toboot tootoo tororo torrox tortor totoro totrot toxbot trotro xoxoxo

bbbbbbb boo-boo obox-ob oroboro ottrott oxoboxo rootrot roxboro too-too tototoo tro-tro xxxxxxx

bbbbbbbb bo-bo-bo toottoot torotoro xoxoxoxo

borborbor

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