-ic b-p bbb bbc bbi bbn bbo bbp bbr bbt bby bcb bcc bci bcn bco bcp bcr bct bcy bi- bib bic bii bin bio bip bir bit biy bnb bnc bni bnn bno bnp bnr bnt bob boc boi bon boo bop bor bot boy bpb bpc bpi bpn bpo bpp bpr bpt bpy brb bri brn bro brp brr brt bry btb btc bti btn bto btp btr btt bty by- byc byi byn byo byp byr byt c-- cbb cbc cbi cbn cbo cbp cbr cbt cby ccb ccc cci ccn cco ccp ccr cct ci- cib cic cii cin cio cip cir cit cn- cnb cnc cni cnn cno cnp cnr cnt cny co- cob coc coi con coo cop cor cot coy cpb cpc cpi cpn cpo cpp cpr cpt crb crc cri crn cro crp crr crt cry ctb ctc cti ctn cto ctp ctr ctt cty cyb cyc cyn cyo cyp cyr cyt ibb ibc ibi ibn ibo ibp ibr ibt iby icb icc ici icn ico icp icr ict icy iib iic iii iin iio iip iir iit in- inb inc ini inn ino inp inr int iny io- iob ioc ioi ion ioo iop ior iot ipb ipc ipi ipn ipo ipp ipr ipt ipy ir- irb irc iri irn iro irp irr irt iry itb itc iti itn ito itp itt ity iyc iyo iyr iyt iyy n-i nbb nbc nbi nbn nbo nbp nbr nbt ncb ncc nci ncn nco ncp ncr nct nib nic nii nin nio nip nir nit nnb nnc nni nnn nno nnp nnt no- nob noc noi non noo nop nor not noy npb npc npi npn npo npp npr npt nrb nrc nri nrn nro nrp nrr nrt nry ntb ntc nti ntn nto ntp ntr ntt nyc nyn nyo nyp nyt nyy o-i ob- obb obc obi obn obo obp obr obt oby oc- ocb occ oci ocn oco ocp ocr oct oib oic oii oin oio oip oir oit on- onb onc oni onn ono onp onr ont ony oo- oob ooc ooi oon ooo oop oor oot op- opb opc opi opn opo opp opr opt opy or- orb orc ori orn oro orp orr ort ory ot- otb otc oti otn oto otp otr ott oyi oyo p-p pbb pbc pbi pbn pbo pbp pbr pbt pby pcb pcc pci pcn pco pcp pcr pct pib pic pii pin pio pip pir pit pn- pnb pnc pni pnn pno pnp pnr pnt pny pob poc poi pon poo pop por pot poy ppb ppc ppi ppn ppo ppp ppr ppt prb prc pri prn pro prp prr prt pry pt- ptb ptc pti ptn pto ptp ptr ptt pty py- pyb pyc pyn pyo pyr pyt rbb rbc rbi rbn rbo rbp rbr rbt rcb rcc rci rcn rco rcp rcr rct rib ric rii rin rio rip rir rit riy rnb rnc rni rnn rno rnp rnr rnt rny rob roc roi ron roo rop ror rot roy rpb rpc rpi rpn rpo rpp rpr rpt rrb rrc rri rrn rrp rrr rrt rtb rtc rti rtn rto rtp rtr rtt rty ry- ryc ryn ryo ryr ryy tbb tbc tbi tbn tbo tbp tbr tbt tcb tcc tci tcn tco tcp tcr tct tib tic tii tin tio tip tir tit tiy tnb tnc tni tnn tno tnp tnr tnt to- tob toc toi ton too top tor tot toy tpb tpc tpi tpn tpo tpp tpr tpt trb trc tri trn tro trp trr trt try ttb ttc tti ttn tto ttp ttr ttt tty tyc tyn tyo typ tyr tyt ybc ybi ybp ybr yby ycc yci yco ycp ycy yii yin yio yip yir yit ynn ynp yny yob yoc yoi yon yoo yop yor yot yoy ypo yrc yrn yro yrp yrt ytc ytn yto ytp ytr ytt yyb yyc yyt yyy