b-p bbb bbi bbm bbo bbp bbr bbs bbt bi- bib bii bim bio bip bir bis bit bmb bmi bmm bmo bmp bmr bms bmt bob boi bom boo bop bor bos bot bpb bpi bpm bpo bpp bpr bps bpt brb bri brm bro brp brr brs brt bsb bsi bsm bso bsp bsr bss bst btb bti btm bto btp btr bts btt ibb ibi ibm ibo ibp ibr ibs ibt iib iii iim iio iip iir iis iit im- imb imi imm imo imp ims imt io- iob ioi iom ioo iop ior ios iot ipb ipi ipm ipo ipp ipr ips ipt ir- irb iri irm iro irp irr irs irt is- isb isi ism iso isp isr iss ist itb iti itm ito itp its itt m-o m-r mbb mbi mbm mbo mbp mbr mbs mbt mi- mib mii mim mio mip mir mis mit mmb mmi mmm mmo mmp mmr mms mmt mob moi mom moo mop mor mos mot mpb mpi mpm mpo mpp mpr mps mpt mrb mri mrm mro mrp mrr mrs mrt msb msi msm mso msp msr mss mst mtb mti mtm mto mtp mtr mts mtt o-i ob- obb obi obm obo obp obr obs obt oib oii oim oio oip oir ois oit om- omb omi omm omo omp omr oms omt oo- oob ooi oom ooo oop oor oos oot op- opb opi opm opo opp opr ops opt or- orb ori orm oro orp orr ors ort os- osb osi osm oso osp osr oss ost ot- otb oti otm oto otp otr ots ott p-p pbb pbi pbm pbo pbp pbr pbs pbt pib pii pim pio pip pir pis pit pmb pmi pmm pmo pmp pmr pms pmt pob poi pom poo pop por pos pot ppb ppi ppm ppo ppp ppr pps ppt prb pri prm pro prp prr prs prt ps- psb psi psm pso psp psr pss pst pt- ptb pti ptm pto ptp ptr pts ptt rbb rbi rbm rbo rbp rbr rbs rbt rib rii rim rio rip rir ris rit rmb rmi rmm rmo rmp rmr rms rmt rob roi rom roo rop ror ros rot rpb rpi rpm rpo rpp rpr rps rpt rrb rri rrm rrp rrr rrs rrt rsb rsi rsm rso rsp rsr rss rst rtb rti rtm rto rtp rtr rts rtt sbb sbi sbm sbo sbp sbr sbs sbt sib sii sim sio sip sir sis sit smb smi smm smo smp smr sms smt sob soi som soo sop sor sos sot spb spi spm spo spp spr sps spt sr- srb sri srm sro srp srr srs srt ss- ssb ssi ssm sso ssp ssr sss sst stb sti stm sto stp str sts stt tbb tbi tbm tbo tbp tbr tbs tbt tib tii tim tio tip tir tis tit tmb tmi tmm tmo tmp tmr tms tmt to- tob toi tom too top tor tos tot tpb tpi tpm tpo tpp tpr tps tpt trb tri trm tro trp trr trs trt tsb tsi tsm tso tsp tsr tss tst ttb tti ttm tto ttp ttr tts ttt

-ism bbbb bbbs bbpr bibb bibi bibo bibs biis bimo bims bio- bioi bios biot bipm bipp bips birb biri biro birr birs birt bis- biso bisp biss bist bito bits bitt bmir bmmi bmop bmpt bmts bobb bobi bobo bobs boi- boii boim bois boit bomb bomi bomp boms bomt boob boom boop boor boos boot bopp bops bor- bori borm boro borr bors bort bosi bosm boso boss bost botb boti boto bots bott bpms bpot bpti brim brio bris brit brob brom broo bror bros brot brrm brrr brrs brsb brsr brst bsim bsms bsmt bsos bspp bspr bsrm bssm bsts btbp btob btor btps btrt btss bttb ibbm ibim ibis ibmp ibms ibos ibot ibri ibro ibss ibtb ibts iiii iiio iiis iiit iioi iioo iiop iios iipm iirs iisi iism iisp iisr iist iitm iitr iitt imbi imir imit immi immo imms immt impi impr imps impt imri imro imrr imsi imso imsp imsr imss imst imto imts iobi ioii ioio ioit iomo iooi iooo ioos iops iori iors ioso ioto ipmi ipmp ipms ipop ipos ippo ippr ipri ipsi ipso ipsp ipss ipto ipts irbm irbp iri- irio irip iris irmo irms irob irop irps irri irrs irsp irti irtp irts isbt isim isis isit ismi ismo isms iso- isop isor isos ispr isps isri isrp issi isso issp issr isss isti isto istp istr ists itbs itim itis itmo itms itoi itoo itor itos itri itrs itsi itso itsp itto mbbs mbim mbio mbis mbms mbps mbrs mibs miii miio miis miit mim- mimi mimo mimp mims mio- mios mipi mipr mips mipt miri miro mirr mirs mirt mis- misi miso misr miss mist mit- mitb miti mitm mito mits mitt mmii mmis mmmm mmms mmor mmpi mmpr mmrp mmst mmts mobb mobi mobo mobs moii moio moir mois moit momi momo moms moob moop moor moos moot mopp mops morb mori moro mors mort mosi moso moss most motb moti motm moto mots mott mpio mpir mpit mppp mpps mpri mpro mprp mpst mptp mrbb mrbm mrbs mris mrps mrsi mrtm mrts mrtt msmb msmm msms msop msor mspb mspi mspp msrb msrp msrt mssi mssm mssp mssr msst mstp mstr msts mtbo mtbs mtom mtor mtrr mtss mtst mttr mtts obbo obis obit oboi obor obos obot obri obro obsr obss obst obts oiii oimb oios oirt oism oist oiti ombo omim omio omis omit omo- omoi omoo omor omps ompt omri omro omsi oobi ooms oooo ooos oops oort oosi oost ootb ootp oots opii opio opis opit opms opo- opor opos oppi oppo opps opsi opsm opti opto opts orbb orbi orbo orbs ori- orio oris orit ormo oro- orom oror oros orot orpi orps orri orro orrs orsi orso orto orts osbp osii osim osip osis