-al -ol a-a a-b a-i a-z aaa aab aai aal aao aap aar aas aaz ab- aba abb abi abl abo abp abr abs abz ai- aia aib aii ail aio aip air ais aiz al- ala alb ali all alo alp alr als alz aoa aob aoi aol aoo aop aor aos ap- apa apb api apl apo app apr aps ar- ara arb ari arl aro arp arr ars arz as- asa asb asi asl aso asp asr ass asz az- aza azb azi azo azp azs azz b-p baa bab bai bal bao bap bar bas baz bba bbb bbi bbl bbo bbp bbr bbs bi- bia bib bii bil bio bip bir bis biz bla blb bli bll blo blp blr bls blz boa bob boi bol boo bop bor bos boz bpa bpb bpi bpl bpo bpp bpr bps bra brb bri brl bro brp brr brs brz bsa bsb bsi bsl bso bsp bsr bss bza bzo bzp bzr bzs bzz ia- iaa iab iai ial iao iap iar ias iaz iba ibb ibi ibl ibo ibp ibr ibs ibz iia iib iii iil iio iip iir iis il- ila ilb ili ill ilo ilp ilr ils ilz io- ioa iob ioi iol ioo iop ior ios ipa ipb ipi ipl ipo ipp ipr ips ir- ira irb iri irl iro irp irr irs is- isa isb isi isl iso isp isr iss iza izi izo izz l-p la- laa lab lai lal lao lap lar las laz lba lbb lbi lbl lbo lbp lbr lbs lia lib lii lil lio lip lir lis liz lla llb lli lll llo llp llr lls llz loa lob loi lol loo lop lor los loz lpa lpb lpi lpl lpo lpp lpr lps lpz lra lrb lri lro lrp lrr lrs lrz lsa lsb lsi lsl lso lsp lsr lss lsz lzi lzo lzr lzs o-i oaa oab oai oal oao oap oar oas ob- oba obb obi obl obo obp obr obs oia oib oii oil oio oip oir ois oiz ola olb oli oll olo olp ols oo- ooa oob ooi ool ooo oop oor oos op- opa opb opi opl opo opp opr ops or- ora orb ori orl oro orp orr ors orz os- osa osb osi osl oso osp osr oss oza ozo ozs ozz p-p paa pab pai pal pao pap par pas paz pba pbb pbi pbl pbo pbp pbr pbs pbz pia pib pii pil pio pip pir pis piz pla plb pli pll plo plp plr pls plz poa pob poi pol poo pop por pos poz ppa ppb ppi ppl ppo ppp ppr pps ppz pra prb pri prl pro prp prr prs prz ps- psa psb psi psl pso psp psr pss pzl pzp ra- raa rab rai ral rao rap rar ras raz rba rbb rbi rbl rbo rbp rbr rbs ria rib rii ril rio rip rir ris riz rla rli rll rlo rlp rlr rls roa rob roi rol roo rop ror ros roz rpa rpb rpi rpl rpo rpp rpr rps rpz rra rrb rri rrl rrp rrr rrs rsa rsb rsi rsl rso rsp rsr rss rza rzb rzo saa sab sai sal sao sap sar sas saz sba sbb sbi sbl sbo sbp sbr sbs sia sib sii sil sio sip sir sis sla slb sli sll slo slp slr sls soa sob soi sol soo sop sor sos soz spa spb spi spl spo spp spr sps spz sr- sra srb sri srl sro srp srr srs ss- ssa ssb ssi ssl sso ssp ssr sss ssz sza szi szl szp szr zaa zab zai zao zap zar zas zaz zbb zbl zbr zbs zia zib zil zio zip zir zis ziz zla zlr zo- zoa zob zoi zol zoo zor zos zpi zpl zpo zpp zpr zrl zro zrp zrs zsa zsi zsl zsz zzr zzs zzz