a-a a-b a-i aaa aab aad aag aai aap ab- aba abb abd abg abi abp ad- ada adb add adg adi adp ag- aga agb agd agg agi agp ai- aia aib aid aig aii aip ap- apa apb apd apg api app b-p baa bab bad bag bai bap bba bbb bbd bbg bbi bbp bda bdb bdd bdg bdi bdp bga bgb bgd bgg bgi bgp bi- bia bib bid big bii bip bpa bpb bpd bpg bpi bpp daa dab dad dag dai dap dba dbb dbd dbg dbi dbp dda ddb ddd ddg ddi ddp dga dgd dgg dgi dgp di- dia dib did dig dii dip dpa dpb dpd dpg dpi dpp g-d g-p gaa gab gad gag gai gap gba gbd gbg gbi gbp gda gdb gdd gdi gdp gga ggb ggd ggg ggi ggp gia gib gid gig gii gip gpa gpb gpd gpg gpi gpp i-d ia- iaa iab iad iag iai iap iba ibb ibd ibg ibi ibp ida idb idd idg idi idp iga igb igd igg igi igp iia iib iid iii iip ipa ipb ipd ipg ipi ipp p-p paa pab pad pag pai pap pba pbb pbd pbg pbi pbp pda pdb pdd pdg pdi pdp pga pgb pgd pgg pgi pgp pia pib pid pig pii pip ppa ppb ppd ppg ppi ppp