spip spis splc sple splp spls sppd spps spsd spse spsp spss spy- spys sscc ssce ssci sscp sscs ssdc ssdd ssdp ssec ssee ssep sses ssid ssis sslc ssle sslp sspc sspe sspl ssps sssc sssi ssss syce syde sydi syds syes syis syl- syle syli syll syls sype syse syss yccc ycee ycie ydee ydel ydes ydie ydil yedd yede yedi yeds yeed yeel yeep yees yeid yeie yeii yeld yele yeli yell yelp yepd yepe yepp yeps yesi yess yeye yeyi yidi yids yild yile yili yill yipe yips yise yiss ylde ylds ylid ylle ylli ylls ypcc ypsi ysed ysee ysel yses ysii ysle yspi ysse yyyy