dashi adshi dsahi sdahi asdhi sadhi dahsi adhsi dhasi hdasi ahdsi hadsi dshai sdhai dhsai hdsai shdai hsdai ashdi sahdi ahsdi hasdi shadi hsadi dasih adsih dsaih sdaih asdih sadih daish adish diash idash aidsh iadsh dsiah sdiah disah idsah sidah isdah asidh saidh aisdh iasdh siadh isadh dahis adhis dhais hdais ahdis hadis daihs adihs diahs idahs aidhs iadhs dhias hdias dihas idhas hidas ihdas ahids haids aihds iahds hiads ihads dshia sdhia dhsia hdsia shdia hsdia dsiha sdiha disha idsha sidha isdha dhisa hdisa dihsa idhsa hidsa ihdsa shida hsida sihda ishda hisda ihsda ashid sahid ahsid hasid shaid hsaid asihd saihd aishd iashd siahd isahd ahisd haisd aihsd iahsd hiasd ihasd shiad hsiad sihad ishad hisad ihsad
Note: these 'words' (valid or invalid) are all the permutations of the word dashi. These words are obtained by scrambling the letters in dashi.