a-a a-b a-i aaa aab aag aai aam aan ab- aba abb abg abi abm abn ag- aga agb agg agi agm agn ai- aia aib aig aii aim ain ama amb amg ami amm amn an- ana anb ang ani anm ann baa bab bag bai bam ban bba bbb bbg bbi bbm bbn bga bgb bgg bgi bgm bgn bi- bia bib big bii bim bin bma bmb bmg bmi bmm bmn bna bnb bng bni bnn gaa gab gag gai gam gan gba gbg gbi gbm gbn gga ggb ggg ggi ggm ggn gia gib gig gii gim gin gma gmb gmg gmi gmm gmn gna gnb gni gnm gnn ia- iaa iab iag iai iam ian iba ibb ibg ibi ibm ibn iga igb igg igi igm ign iia iib iii iim iin im- ima imb img imi imm imn in- ina inb ing ini inm inn maa mab mag mai mam man mba mbb mbg mbi mbm mga mgb mgi mgm mgn mi- mia mib mig mii mim min mma mmb mmg mmi mmm mmn mna mnb mng mni mnm mnn n-i naa nab nag nai nam nan nba nbb nbg nbi nbm nbn nga ngb ngg ngi ngm ngn nia nib nig nii nim nin nma nmb nmg nmi nmm nmn nna nnb nng nni nnm nnn