-al a-a a-b a-i aaa aab aai aal aam aas ab- aba abb abi abl abm abs ai- aia aib aii ail aim ais al- ala alb ali all alm als ama amb ami aml amm ams as- asa asb asi asl asm ass baa bab bai bal bam bas bba bbb bbi bbl bbm bbs bi- bia bib bii bil bim bis bla blb bli bll blm bls bma bmb bmi bml bmm bms bsa bsb bsi bsl bsm bss ia- iaa iab iai ial iam ias iba ibb ibi ibl ibm ibs iia iib iii iil iim iis il- ila ilb ili ill ilm ils im- ima imb imi iml imm ims is- isa isb isi isl ism iss la- laa lab lai lal lam las lba lbb lbi lbl lbm lbs lia lib lii lil lim lis lla llb lli lll llm lls lma lmb lmi lml lmm lms lsa lsb lsi lsl lsm lss maa mab mai mal mam mas mba mbb mbi mbl mbm mbs mi- mia mib mii mil mim mis mla mlb mli mll mlm mls mma mmb mmi mml mmm mms msa msb msi msl msm mss saa sab sai sal sam sas sba sbb sbi sbl sbm sbs sia sib sii sil sim sis sla slb sli sll slm sls sma smb smi sml smm sms ss- ssa ssb ssi ssl ssm sss