sor sos sot sow spb spf spi spl spn spo spp spr sps spt spw sr- srb srf sri srl srn sro srp srr srs srt srw ss- ssb ssf ssi ssl ssn sso ssp ssr sss sst ssw stb stf sti stl stn sto stp str sts stt stw swb swf swi swl swn swo swp swr sws swt tbb tbf tbi tbl tbn tbo tbp tbr tbs tbt tfb tff tfi tfl tfn tfo tfp tfr tfs tft tfw tib tif tii til tin tio tip tir tis tit tiw tlf tli tll tln tlo tlp tlr tls tlt tlw tnb tnf tni tnl tnn tno tnp tnr tns tnt tnw to- tob tof toi tol ton too top tor tos tot tow tpb tpf tpi tpl tpn tpo tpp tpr tps tpt tpw trb trf tri trl trn tro trp trr trs trt trw tsb tsf tsi tsl tsn tso tsp tsr tss tst tsw ttb ttf tti ttl ttn tto ttp ttr tts ttt ttw twb twf twi twl twn two twp twr tws twt tww wbb wbf wbi wbn wbo wbr wbs wbt wbw wfb wff wfi wfl wfn wfo wfp wfr wfs wft wfw wib wif wii wil win wip wir wis wit wl- wlb wlf wli wll wln wlo wlp wlr wls wlt wlw wn- wnf wnl wnn wno wnp wns wnt wnw wob wof woi wol won woo wop wor wos wot wow wpb wpf wpi wpl wpn wpo wpp wpr wps wpt wr- wrf wri wrl wrn wro wrp wrr wrs wrt wrw wsb wsf wsi wsl wsn wso wsp wsr wss wst wsw wtb wtf wti wtn wto wtp wtr wts wtt wtw wwf wwi wwl wwn wwo wwp wwt www