smbe smcc smeb smec smee smet smoc smos smot smrt smsc smss smtc smte sobe sobo sobr sobs sobt soce socm soco socr socs soec soem soeo soes somb some somm somo soom soor soos soot sorb sore sorm soro sorr sors sort sose soso soss sost sotc sote sotm soto sots srbc srcc srct sreb srec srem sreo sres srmc sros srtr ssbr sscc ssce sscs ssec ssee ssem sses sset ssmc ssoc ssot ssrc ssrm ssrs sssb sssc sssm ssss sstb sstc ssts stbc stbs stcc stcs stec stee stem steo ster stes stet stmc stms stmt stob stoe stom stoo stor stos stot strc stre stro strs stsm stss sttc sttr t-mo tbbs tbcb tbcc tbce tbrb tbst tcbs tccc tcom tcos tctc tcts tebo teco tecr tecs tect teec teem teer tees teet teme temo tems teom teor teos ter- terc tere term tero terr ters tesc tese teso tess test tete teto tetr tets tett tmbc tmbr tmcc tmcm tmos tmro tmsc tmtt tobe tobo tobs tobt toce toco toee toer toes toet tomb tome tomm tomo toms tomt toom toor toos toot torc tore torm toro torr tors tort tosb tosc tose toso toss tost totc tote totm toto totr tots tott trcc tre- trec tree trem treo tres tret trmb trms troc troe trom troo tros trot trst trtc trte trtr tsbc tscc tsec tses tset tsmc tsob tsom tsos tsse tssm tssr tsst tstc tstm tsts ttbb tteo tter ttms ttoe ttss tttt