tcca tccc tcnn tcpa tctc tcts tnca tncc tnsp tnts tpac tpap tpcp tpcs tppa tppp tppr tprs tpsa tpsc tptp tptr traa trac tran trap tras trat trav trca trcc trna trpa trpc trpn trpp trps trpv trra trst trtc trtr trvs tsaa tsar tsat tsav tsca tscc tscp tsna tspn tsps tspt tssa tssr tsst tstc tsts ttcn ttcp ttss tttt tvac tvpa tvrr tvsa tvsn tvss tvtv vaan vaar vaas vaat vaca vacs vana vanc vann vans vant vapa vara varn varp varr vars vart vas- vasa vasp vass vast vata vats vatt vava vavs vcat vcrs vnav vpat vrac vran vrap vras vrav vrnn vrpn vrsa vsan vsrp vssc vsta vtac vtap vtpr vtrs vvvv