yawls aywls ywals wyals awyls wayls yalws aylws ylaws lyaws alyws layws ywlas wylas ylwas lywas wlyas lwyas awlys walys alwys lawys wlays lways yawsl aywsl ywasl wyasl awysl waysl yaswl ayswl ysawl syawl asywl saywl ywsal wysal yswal sywal wsyal swyal awsyl wasyl aswyl sawyl wsayl swayl yalsw aylsw ylasw lyasw alysw laysw yaslw ayslw ysalw syalw asylw saylw ylsaw lysaw yslaw sylaw lsyaw slyaw alsyw lasyw aslyw salyw lsayw slayw ywlsa wylsa ylwsa lywsa wlysa lwysa ywsla wysla yswla sywla wsyla swyla ylswa lyswa yslwa sylwa lsywa slywa wlsya lwsya wslya swlya lswya slwya awlsy walsy alwsy lawsy wlasy lwasy awsly wasly aswly sawly wsaly swaly alswy laswy aslwy salwy lsawy slawy wlsay lwsay wslay swlay lsway slway
Note: these 'words' (valid or invalid) are all the permutations of the word yawls. These words are obtained by scrambling the letters in yawls.