psco pshc pshs psim psip psis psoc psoi psos psph pspi pspp psps pssc pssm psso psy- psys pych pyic pym- pyms pyo- pyos pypy pyss s-ib s-ic s-ii s-os sbbs sbcc sbcs sbhc sbhs sbic sbmc sbsi sbsp scbi sccc sccm sccp sccs sccy sch- schh schi scho schs sci- scic scim scio scip scis scmc scmm scmo scmp scms scob scoh scom scoo scop scpb scpi scpm scpo scps scsc scsh scsi scso shbm shbs shcc shcp shhh shhs shib shih shii shim shio ship shis shm- shmo shom shoo shop shos shps shsc shyp sibc sibi sibo sibs siby sicc sich sici sicm sico sicp sics sihi sihs siim simh simi simm simo simp sims simy siop sios sipc sipi sipo sipp sips sipy sisc sish sisi siss sisy siyi smbc smbh smcc smch smcp smhs smic smis smoc smos smoy smps smsc smsh smsp smss sobo sobp sobs soch soci socm soco socs socy sohh sohm soho sohp sohs soic soim sois somb somi somm somo somy soom soop soos sooy soph sopi sopo sopp sops sopy sosh sosi soso soss soyo soys spby spcc spco spcs sphs spib spic spim spio spip spis spmi spms spoc spoo spop spos spoy spps spso spsp spss spy- spyh spys ssby sscc ssci sscp sscs sshs ssis ssmc ssoc ssop sspc sspo ssps sssb sssc sssh sssi sssm ssss sybo sych syco syis sym- symi syms syph sypo syso syss ybbs yccc ycch ycsb yhis yips yiss ymci yobi yobo yobs yoch yoho yomi yomo yomp yoop yopo yopy yosh yosi yoso yoyo ypcc ypsi ysby ysco ysii ysop yspi yssh ysyb yyyy