dddd ddot ddpo ddps ddss ddts dod- dodd dodo dods dood doop doos doot dopo dopp dops dopt doso doss dost dotd doto dots dott dpdt dpos dpsd dpst dpts dsdp dsos dsps dspt dssp dsst dsto dsts dtdp dtot dtss dttp oddd odds odoo odop odos odot odso odts oooo ooos oops oost ootp oots opds opo- opos oppo opps opto opts osoo osos ossd osso osts oto- otoo otos otpp otso otto otts pdos pdsd pdss pod- podd podo pods pood poop poos poot pop- popo popp pops popt poso poss post potd poto pots pott ppds ppod ppos pppd pppo pppp ppps ppss ppts pptt psdp psds psos pspp psps psso psst psts ptop ptpd ptsd s-os sdds sdot sdps sdss sodd sodo sods sood soop soos soot sopd sopo sopp sops soso soss sost soto sotp sots spdp spdt spod spoo spop spos spot sppd spps spsd spso spsp spss spst spto spts ssdd ssdp ssop ssot sspo ssps sspt ssss sstd sstp ssts stds stod stoo stop stos stot stpd stpp stps stss sttd tdss todd todo tods todt tood toos toot top- topd topo topp tops topt toso toss tost totd toto tots tott tppd tppp tptp tsop tsos tspo tsps tspt tsst tsts ttop ttss tttt