a-a aaa aad aaf aag aah aan ad- ada add adf adg adh adn af- afa afd aff afg afh afn ag- aga agd agf agg agh agn aha ahd ahf ahg ahh ahn an- ana and anf ang anh ann daa dad daf dag dah dan dda ddd ddf ddg ddh ddn dfa dfd dff dfg dfh dfn dga dgd dgf dgg dgh dgn dh- dha dhd dhf dhh dna dnd dnf dng dnh dnn faa fad faf fag fah fan fda fdd fdf fdg fdh fdn ffa ffd fff ffg ffh ffn fga fgd fgf fgg fgh fgn fha fhf fhg fhh fhn fna fnd fnf fng fnh fnn g-d gaa gad gaf gag gah gan gda gdd gdf gdh gdn gfa gfd gff gfh gga ggd ggg ggh ggn gha ghd ghg ghh ghn gna gnd gnf gnn haa had haf hag hah han hda hdd hdf hdg hdh hdn hfa hfd hff hfg hfh hfn hga hgf hgg hgh hgn hha hhd hhf hhg hhh hhn hna hnd hnf hng hnh hnn naa nad naf nag nah nan nda ndd ndf ndg ndh ndn nfa nfd nff nfn nga ngd ngf ngg ngh ngn nha nhd nhf nhg nhh nhn nna nnf nng nnh nnn