buran ubran bruan rbuan urban ruban buarn ubarn baurn aburn uabrn aubrn braun rbaun barun abrun rabun arbun urabn ruabn uarbn aurbn raubn arubn burna ubrna bruna rbuna urbna rubna bunra ubnra bnura nbura unbra nubra brnua rbnua bnrua nbrua rnbua nrbua urnba runba unrba nurba rnuba nruba buanr ubanr baunr abunr uabnr aubnr bunar ubnar bnuar nbuar unbar nubar banur abnur bnaur nbaur anbur nabur uanbr aunbr unabr nuabr anubr naubr branu rbanu barnu abrnu rabnu arbnu brnau rbnau bnrau nbrau rnbau nrbau banru abnru bnaru nbaru anbru nabru ranbu arnbu rnabu nrabu anrbu narbu uranb ruanb uarnb aurnb raunb arunb urnab runab unrab nurab rnuab nruab uanrb aunrb unarb nuarb anurb naurb ranub arnub rnaub nraub anrub narub
Note: these 'words' (valid or invalid) are all the permutations of the word buran. These words are obtained by scrambling the letters in buran.