whids hwids wihds iwhds hiwds ihwds whdis hwdis wdhis dwhis hdwis dhwis widhs iwdhs wdihs dwihs idwhs diwhs hidws ihdws hdiws dhiws idhws dihws whisd hwisd wihsd iwhsd hiwsd ihwsd whsid hwsid wshid swhid hswid shwid wishd iwshd wsihd swihd iswhd siwhd hiswd ihswd hsiwd shiwd ishwd sihwd whdsi hwdsi wdhsi dwhsi hdwsi dhwsi whsdi hwsdi wshdi swhdi hswdi shwdi wdshi dwshi wsdhi swdhi dswhi sdwhi hdswi dhswi hsdwi shdwi dshwi sdhwi widsh iwdsh wdish dwish idwsh diwsh wisdh iwsdh wsidh swidh iswdh siwdh wdsih dwsih wsdih swdih dswih sdwih idswh diswh isdwh sidwh dsiwh sdiwh hidsw ihdsw hdisw dhisw idhsw dihsw hisdw ihsdw hsidw shidw ishdw sihdw hdsiw dhsiw hsdiw shdiw dshiw sdhiw idshw dishw isdhw sidhw dsihw sdihw
Note: these 'words' (valid or invalid) are all the permutations of the word whids. These words are obtained by scrambling the letters in whids.