bbbb bbbs bbpr bffs bfpo bfpp bfsr bmop bobb bobo bobs boff bofs bomb bomp boms boob boof boom boop boor boos bopp bops bor- borf borm boro borr bors bosm boso boss bpms brfm brob brom broo bror bros brrm brrr brrs brsb brsr bsff bsfs bsms bsos bspp bspr bsrm bssm fbom fbop fbrs ffff ffps ffrr ffss fmsr fmss fobs fofo fomo fomp foof foom foos fopp fops for- forb form foro forr fors fosb foso foss fprf frob from frop fros frps frsb frsm frso fsfo fspf fssf fssp mbbs mbms mbps mbrs mbsf mfbm mfor mfps mfrp mfrs mfsb mmff mmmm mmms mmor mmpr mmrf mmrp mobb mobo mobs moff mofo momo moms moob moop moor moos mopp mops morb morf moro mors moso moss mpfs mppf mppp mpps mprf mpro mprp mrbb mrbm mrbs mrps msff msfs msmb msmm msms msop msor mspb mspp msrb msrp mssf mssm mssp mssr obbo obor obos obro obsr obss off- offo offr offs ofor ombo omo- omoo omor omps omro ooff oofs ooms oooo ooos oops opms opo- opor opos oppo opps opsm orbb orbo orbs orff orfs ormo oro- orof orom oror oros orps orro orrs orso osbp osm- osmo osoo osor osos ospm osro ossb osso pbmr pbrf pbrs pbsp pfff pffr pfps pmbr pmmp pmos pmpm pmpo pmrs pmsf pobo pobs poff pomo pomp poms poof poop poor poos pop- popo popp pops porb poro porr pors posb poso poss ppms ppos pppo pppp ppps pprf pprm ppsf ppss prbs prfs pro- prob prof prom proo prop pros prps prrm prrs prso prss psbr psfs psos pspp pspr psps psrp pssm psso rbbb rbbr rbbs rbms rbsp rbss rmbs rmrp rmsp rob- robb robo robs roff rofo romb romm romo romp roms roob roof room roop roor roos ropo rops roro roso rosp ross rpms rpob rpof rpos rpps rrmp rrrr rrsp rsos rspb rspo rsps s-os sbbs sbor sbsp sfmm sfor sfos sfro sfss smbf smof smos smps smrf smsp smss sobo sobp sobr sobs sofo somb somm somo soof soom soop soor soos sopo sopp sops sorb sorm soro sorr sors soso soss spfs spms spoo spop spor spos sppf spps sprm spro sprs spso spsp spss sros srps srsp ssbr ssfp ssop sspf sspo ssps ssrm ssrs sssb sssf sssm ssss