bbbb bbci bbfc bbpr bbrc bcbc bcbp bccc bcci bcfc bcit bcof bcor bcpp bctc bfpo bfpp bftt bibb bibi bibo bicc bici bico biff bifi bio- bioc bioi biot bipp birb biri biro birr birt bitc bito bitt bobb bobi bobo boco boff boi- boii boit boob booc boof boop boor boot bopp bor- borf bori boro borr bort botb boti boto bott bpcp bpfc bpot bprc bptf bpti brcb brfc bric brio brit brob broc broo bror brot brrr brtc btbp btcc btfc btob btor btrc btrt bttb c-bo cbbc cbcc cbcp cbcr cbct cbfb cbfc cbir cbit cbot cbpc cbpp cbrt cbtc cbtf ccbc cccb cccc cccf ccci cccp ccfc ccff ccfi ccic ccii ccip ccir ccob ccoc ccpp ccpr ccrc ccrf ccri ccrp ccrt cctb cctc cctt cfbc cfbr cfbt cfcb cfcf cfco cffb cffr cfit cfor cfpo cfpr cfrb cfrp cfrt cftc cftr cibc cibi cibo cicc cici cico cicr cict ciff ciii ciit ciob cior cipf cipo cipp cirb circ ciri ciro cirr cirt citb citf citi cito citp citt cobb cobi cobo coco cocp coct cofc coff cofi coft coif coip coir coit coob coof coop coot copi copo copp copr copt cor- corb corc corf cori coro corp corr cort cotb cotc coti coto cott cpbc cpff cpft cpic cpif cpio cpri cprt cptp cptr crbc crcc crcr crfc crib cric crif crip crit crob croc croo crop cror crot crpc crrt crtc crtf crtp ctbi ctcf ctcp ctfc ctfo ctic ctor ctot ctpo ctpp ctrc ctrp fbop fccf fccp fcic fcii fcot fcto ffcc ffff ffii ffrr fftf fibp ficc fico fict fifc fiff fifi fifo fift fiii fior fipp fitc fiti fitt fobt foci foco fofo foof foot fopp for- forb fori foro forr fort foti foto fotp fott fp-c fpcc fpct fprf frbc frcc frcp frfc frib fric frio frip frit frob frop frot ft-c ftfc ftii ftop ibfi ibot ibrc ibri ibro ibtb ibtc icbc icbp iccb iccc iccf icci icco iccp iccr icct icfb icoc icor icpc icpo icrc icrf icrr icrt ictp ifbb ifco ifcp ific ifit ifor ifpo ifrb ifrf ifri ifto iiii iiio iiit iioi iioo iiop iipf iirc iitr iitt iobi ioci iocp iofc ioii ioio ioit ioof iooi iooo iori iotf ioto ipcc ipct ipfc ipop ippc ippf ippo ippr ipri iptc ipto irbp ircc iri- iric irio irip irob iroc irop irpc irrc irri irtf irti irtp itic itif itof itoi itoo itor itpc itrf itri ittf itto obbo obit oboi obor obot obri obro ocbc occc occi occt ocfp ocpp ocro ocrr oct- octi octo ofcr off- offc offo offr ofit ofor oftp oici oiii oipc oirt oitc oiti oobi oocr ooff oooo oort ootb ootp opic opii opio opit opo- opor oppi oppo opti opto orbb orbi orbo orci orco orff orfi ori- oric orif orio orit oro- orof oror orot orpc orpi orri orro ortc orto otfc otfp otic otif otit oto- otof otoo otor otpp otro otti otto pbcc pboc pbrf pcbc pccc pcfc pcip pcpb pcpp pcrc pcrf pfcb pfff pffr pfft pfic pfit pibb pibi picc pici pico picr pict piff piip piob piot pipi pipo pipp pirc piri piro pirr pitf piti pito pitr pitt pobo poco poff pofi poio poof poop poor poot pop- popc popi popo popp popt porb porc pori poro porr port potc potf poti poto pott ppcc ppci ppib ppic ppif pppo pppp pprc pprf pptt prbc prcc prcf prcp prfc pri- prif prii pro- prob proc prof proo prop prot prri prtc prti prtp prtr ptcc ptop ptrf pttc rbbb rbbr rcbc rcbo rccb rccc rcfc rcic rcpi rcpo rcpt rctc rcti rffc rfic rftc rib- ribo ricc rico rict riff rift riif riot ripi ripp ripr ript riri riti rito ritt rob- robb robi robo robt rocc roco rofc roff rofo roif roio roir roit roob roof rooi roop roor root ropo rorc rori roro rort rotc roti roto rotr rott rpfc rpii rpob rpof rrfc rrif rrrr rtbf rtcc rtfb rtfc rttp tbcb tbcc tbit tbrb tbtp tccc tcfc tcpo tctc tfot tfpt tftc tftp tibi ticc tico tiff tifo tift tiit tiop tip- tipc tipi tipo tipp tipt tirb tiri tiro tirr titc titi tito titp titt tobi tobo tobt toci toco toff tofi tofo toft toit toof toor toot top- topf topi topo topp topt torc torf tori toro torp torr tort totc toti toto totr tott tpcp tpir tppp tppr tptp tptr trcc trfc trfr tri- trib tric trif trio trip trit troc troi troo trop trot trpc trpp trtc trtr ttbb ttcp ttfc ttff ttop tttt