ffff ffrr flom floo flor flou flow fluf flum fluo flur flwm fofo foll folo folr fomo foof fool foom for- forl form foro forr foul four fowl frol from frou frow frum fuff fufu full fulu fumo fuor fur- furl furm furo furr lfmr llll lloo lmfm lmmr loff loll lolo lomm lomo lomu loof lool loom loor loro loul loum lour louu louw lowl lowr lowu loww lrrr luff lufu lull lulu lumo luwo luwr luwu lwoo lwow mfor mfou mmff mmmm mmor mmrf mmwr moff mofo mofu moll molo molr momo momu mool moor morf morl moro moru morw mouf moul mour mowl mowr mrml muff mufu mull mulm mulo mulu mumm mumo mumu murl muro murr muru mwfl mwmw off- offo offr offu ofml ofor ollo olmo olof olom olor olur olwm omo- omoo omor omro omul omuo ooff oolo oooo orff orfu orlo orlu ormo oro- orof orom oror orro orum orwo ouff oulu our- ouro ouu- owow owul owur rffl rlml rmll roff rofl rofo rolf roll rolm rolo romm romo roof rool room roor roro roru rouf roul roum rowf rowl rowm rowr roww rrrr rrum ruff rufo rull rulo ruml rumm rumo ruro ruru ullo ullr ulmo ulmu ulo- ulow ulul ulum umff ummo umol umor uofl uofm uofo uofw uoml uomo uor- urff uro- urol urom uroo urum urur uulu uuuu wfff wffm wflf wfll wflm wflo wflr wflw wfmf wfml wfmo wfmr wfmu wfmw wfom wfor wfrf wfrl wfrm wfro wfru wfrw wful wfum wfur wfwl wfwm wfwo wlff wlfl wlfm wlfr wlfw wllf wlll wllm wllr wllw wlmm wlmr wlmu wlmw wlof wlol wloo wlor wlou wlrm wlro wlrr wlrw wlur wluw wlwf wlwl wlwm wmfm wmfo wmfr wmfu wmll wmlm wmlr wmlu wmml wmmo wmmr wmmw wmom wmoo wmor wmou wmow wmrl wmro wmrr wmuf wmul wmum wmuu wmwm woff wofl wofm wofr wolf woll wolm wolr wolw womo womr woof wool woom woow worf worl worm woro worr worw wouf woul wour wouw wowf wowl wowo woww wrff wrfl wrfm wrfu wrfw wrlf wrll wrlm wrlr wrlu wrmf wrmo wrmr wrmw wrol wrom wroo wrow wrrl wrrm wrro wrrw wruf wrul wrum wrwm wrwr wuff wufl wufm wufo wufr wulf wull wulm wulr wulu wumf wuml wumm wumo wumr wuom wur- wurl wurm wuuf wuuu wuwf wuwm wwfl wwfm wwfr wwfw wwlf wwll wwlr wwlu wwlw wwmm wwof wwol wwor wwow wwrf wwrl wwrm wwrr wwru wwrw wwuf wwwl wwwm wwwr wwww