-ic b-p bbb bbc bbi bbo bbp bbr bbt bcb bcc bci bco bcp bcr bct bi- bib bic bii bio bip bir bit bob boc boi boo bop bor bot bpb bpc bpi bpo bpp bpr bpt brb bri bro brp brr brt btb btc bti bto btp btr btt c-- cbb cbc cbi cbo cbp cbr cbt ccb ccc cci cco ccp ccr cct ci- cib cic cii cio cip cir cit co- cob coc coi coo cop cor cot cpb cpc cpi cpo cpp cpr cpt crb crc cri cro crp crr crt ctb ctc cti cto ctp ctr ctt ibb ibc ibi ibo ibp ibr ibt icb icc ici ico icp icr ict iib iic iii iio iip iir iit io- iob ioc ioi ioo iop ior iot ipb ipc ipi ipo ipp ipr ipt ir- irb irc iri iro irp irr irt itb itc iti ito itp itt o-i ob- obb obc obi obo obp obr obt oc- ocb occ oci oco ocp ocr oct oib oic oii oio oip oir oit oo- oob ooc ooi ooo oop oor oot op- opb opc opi opo opp opr opt or- orb orc ori oro orp orr ort ot- otb otc oti oto otp otr ott p-p pbb pbc pbi pbo pbp pbr pbt pcb pcc pci pco pcp pcr pct pib pic pii pio pip pir pit pob poc poi poo pop por pot ppb ppc ppi ppo ppp ppr ppt prb prc pri pro prp prr prt pt- ptb ptc pti pto ptp ptr ptt rbb rbc rbi rbo rbp rbr rbt rcb rcc rci rco rcp rcr rct rib ric rii rio rip rir rit rob roc roi roo rop ror rot rpb rpc rpi rpo rpp rpr rpt rrb rrc rri rrp rrr rrt rtb rtc rti rto rtp rtr rtt tbb tbc tbi tbo tbp tbr tbt tcb tcc tci tco tcp tcr tct tib tic tii tio tip tir tit to- tob toc toi too top tor tot tpb tpc tpi tpo tpp tpr tpt trb trc tri tro trp trr trt ttb ttc tti tto ttp ttr ttt

bbbb bbci bbpr bbrc bcbc bcbp bccc bcci bcit bcor bcpp bctc bibb bibi bibo bicc bici bico bio- bioc bioi biot bipp birb biri biro birr birt bitc bito bitt bobb bobi bobo boco boi- boii boit boob booc boop boor boot bopp bor- bori boro borr bort botb boti boto bott bpcp bpot bprc bpti brcb bric brio brit brob broc broo bror brot brrr brtc btbp btcc btob btor btrc btrt bttb c-bo cbbc cbcc cbcp cbcr cbct cbir cbit cbot cbpc cbpp cbrt cbtc ccbc cccb cccc ccci cccp ccic ccii ccip ccir ccob ccoc ccpp ccpr ccrc ccri ccrp ccrt cctb cctc cctt cibc cibi cibo cicc cici cico cicr cict ciii ciit ciob cior cipo cipp cirb circ ciri ciro cirr cirt citb citi cito citp citt cobb cobi cobo coco cocp coct coip coir coit coob coop coot copi copo copp copr copt cor- corb corc cori coro corp corr cort cotb cotc coti coto cott cpbc cpic cpio cpri cprt cptp cptr crbc crcc crcr crib cric crip crit crob croc croo crop cror crot crpc crrt crtc crtp ctbi ctcp ctic ctor ctot ctpo ctpp ctrc ctrp ibot ibrc ibri ibro ibtb ibtc icbc icbp iccb iccc icci icco iccp iccr icct icoc icor icpc icpo icrc icrr icrt ictp iiii iiio iiit iioi iioo iiop iirc iitr iitt iobi ioci iocp ioii ioio ioit iooi iooo iori ioto ipcc ipct ipop ippc ippo ippr ipri iptc ipto irbp ircc iri- iric irio irip irob iroc irop irpc irrc irri irti irtp itic itoi itoo itor itpc itri itto obbo obit oboi obor obot obri obro ocbc occc occi occt ocpp ocro ocrr oct- octi octo oici oiii oipc oirt oitc oiti oobi oocr oooo oort ootb ootp opic opii opio opit opo- opor oppi oppo opti opto orbb orbi orbo orci orco ori- oric orio orit oro- oror orot orpc orpi orri orro ortc orto otic otit oto- otoo otor otpp otro otti otto pbcc pboc pcbc pccc pcip pcpb pcpp pcrc pibb pibi picc pici pico picr pict piip piob piot pipi pipo pipp pirc piri piro pirr piti pito pitr pitt pobo poco poio poop poor poot pop- popc popi popo popp popt porb porc pori poro porr port potc poti poto pott ppcc ppci ppib ppic pppo pppp pprc pptt prbc prcc prcp pri- prii pro- prob proc proo prop prot prri prtc prti prtp prtr ptcc ptop pttc rbbb rbbr rcbc rcbo rccb rccc rcic rcpi rcpo rcpt rctc rcti rib- ribo ricc rico rict riot ripi ripp ripr ript riri riti rito ritt rob- robb robi robo robt rocc roco roio roir roit roob rooi roop roor root ropo rorc rori roro rort rotc roti roto rotr rott rpii rpob rrrr rtcc rttp tbcb tbcc tbit tbrb tbtp tccc tcpo tctc tibi ticc tico tiit tiop tip- tipc tipi tipo tipp tipt tirb tiri tiro tirr titc titi tito titp titt tobi tobo tobt toci toco toit toor toot top- topi topo topp topt torc tori toro torp torr tort totc toti toto totr tott tpcp tpir tppp tppr tptp tptr trcc tri- trib tric trio trip trit troc troi troo trop trot trpc trpp trtc trtr ttbb ttcp ttop tttt

bccip bibbo bibic bibio bibri bioci bioco bipib biroc bitit bitop bitti bitto bo-bo bobbi boboc bobr bobri bocci bocor boiro boito booco booit boort bopit borbo borci boric borio boro- boroo borot borro botro botti brico briot brito britt brobo broto brrrr btr-t c-cor c-p-c c-pop ccccc cccii cciii ccitt cibir cipco cippi cipro cirbp circo ciric cirio cirr- cirri cirro citr- citro co-bo co-co co-op cobit cobot cocc- cocci cocco cocio cocir cocto coiro coopt copic copii copir copit coppi coppo copr- copro copto corbi corbo corio coro- coroi corop corot corri corti corto