ssns ssrc ssri ssrl ssrm ssrs sssc sssh sssi sssm ssss syce sych sycr syen syer syes syhe syis syl- syle syli syll syls sym- syme symi syms syn- sync syne syns syny syre syrs syry syse syss yccc ycch ycee yche ycie yech yeel yeen yeer yees yehe yehr yehs yeie yeii yeir yele yeli yell yelm yeme yemm yemn yenc yene yeni yens yere yeri yerl yerm yern yerr yers yery yesh yesi yesm yess yeye yeyi yeyr yhen yher yhes yhis yien yile yili yill yins yire yirm yirn yirr yise yiss ylem ylle ylli ylls ymci ymel ymen ymer ymir ymne ymns ynce ynch ynes ynne ynsh yren yrin yrle yrly yrne yryn ysee ysel ysen yser yses ysii ysle ysse yssh yyyy