snn sno snp sns snt soa sob soc sod soe soh soi som son soo sop sos sot spa spb spc spd spe sph spi spm spn spo spp sps spt ss- ssa ssb ssc ssd sse ssh ssi ssm ssn sso ssp sss sst sta stb stc std ste sth sti stm stn sto stp sts stt taa tab tac tad tae tah tai tam tan tao tap tas tat tba tbb tbc tbd tbe tbh tbi tbm tbn tbo tbp tbs tbt tca tcb tcc tcd tce tch tci tcm tcn tco tcp tcs tct tda tdb tdc tdd tde tdh tdi tdm tdn tdo tdp tds tdt te- tea teb tec ted tee teh tei tem ten teo tep tes tet th- tha thb thc thd the thh thi thm thn tho thp ths tht tia tib tic tid tie tih tii tim tin tio tip tis tit tma tmb tmc tmd tme tmh tmi tmm tmn tmo tmp tms tmt tna tnb tnc tnd tne tnh tni tnm tnn tno tnp tns tnt to- toa tob toc tod toe toh toi tom ton too top tos tot tpa tpb tpc tpd tpe tph tpi tpm tpn tpo tpp tps tpt tsa tsb tsc tsd tse tsh tsi tsm tsn tso tsp tss tst tta ttb ttc ttd tte tth tti ttm ttn tto ttp tts ttt