spo spp spr sps spt spu sr- srb srh sri srk srn sro srp srr srs srt ss- ssb ssh ssi ssk ssn sso ssp ssr sss sst ssu stb sth sti stk stn sto stp str sts stt stu sub suh sui suk sun suo sup sur sus sut suu tbb tbh tbi tbk tbn tbo tbp tbr tbs tbt tbu th- thb thh thi thk thn tho thp thr ths tht thu tib tih tii tik tin tio tip tir tis tit tiu tkb tkk tko tkp tkr tks tkt tnb tnh tni tnk tnn tno tnp tnr tns tnt to- tob toh toi tok ton too top tor tos tot tou tpb tph tpi tpk tpn tpo tpp tpr tps tpt tpu trb trh tri trk trn tro trp trr trs trt tru tsb tsh tsi tsk tsn tso tsp tsr tss tst tsu ttb tth tti ttk ttn tto ttp ttr tts ttt ttu tub tuh tui tuk tun tuo tup tur tus tut tuu ubb ubh ubi ubk ubn ubo ubp ubr ubs ubt ubu uhb uhh uhi uho uhp uhr uhs uht uhu uib uii uin uio uip uir uis uit uiu ukb uki ukk ukn ukp ukr uku un- unb unh uni unk unn uno unp unr uns unt unu uob uok uon uoo uop uor uos uot up- upb uph upi upk upn upo upp upr ups upt upu ur- urb uri urk urn uro urp urr urs urt uru usb ush usi usk usn uso usp usr uss ust usu utb uth uti utk utn uto utp utr uts utt utu uun uur uus uut uuu

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