abapr baapr aabpr aabpr baapr abapr abpar bapar apbar pabar bpaar pbaar aapbr aapbr apabr paabr apabr paabr bapar abpar bpaar pbaar apbar pabar abarp baarp aabrp aabrp baarp abarp abrap barap arbap rabap braap rbaap aarbp aarbp arabp raabp arabp raabp barap abrap braap rbaap arbap rabap abpra bapra apbra pabra bpara pbara abrpa barpa arbpa rabpa brapa rbapa aprba parba arpba rapba praba rpaba bpraa pbraa brpaa rbpaa prbaa rpbaa aaprb aaprb aparb paarb aparb paarb aarpb aarpb arapb raapb arapb raapb aprab parab arpab rapab praab rpaab aprab parab arpab rapab praab rpaab bapra abpra bpara pbara apbra pabra barpa abrpa brapa rbapa arbpa rabpa bpraa pbraa brpaa rbpaa prbaa rpbaa aprba parba arpba rapba praba rpaba
Note: these 'words' (valid or invalid) are all the permutations of the word abapr. These words are obtained by scrambling the letters in abapr.