chanb hcanb cahnb achnb hacnb ahcnb chnab hcnab cnhab nchab hncab nhcab canhb acnhb cnahb ncahb anchb nachb hancb ahncb hnacb nhacb anhcb nahcb chabn hcabn cahbn achbn hacbn ahcbn chban hcban cbhan bchan hbcan bhcan cabhn acbhn cbahn bcahn abchn bachn habcn ahbcn hbacn bhacn abhcn bahcn chnba hcnba cnhba nchba hncba nhcba chbna hcbna cbhna bchna hbcna bhcna cnbha ncbha cbnha bcnha nbcha bncha hnbca nhbca hbnca bhnca nbhca bnhca canbh acnbh cnabh ncabh ancbh nacbh cabnh acbnh cbanh bcanh abcnh bacnh cnbah ncbah cbnah bcnah nbcah bncah anbch nabch abnch banch nbach bnach hanbc ahnbc hnabc nhabc anhbc nahbc habnc ahbnc hbanc bhanc abhnc bahnc hnbac nhbac hbnac bhnac nbhac bnhac anbhc nabhc abnhc banhc nbahc bnahc
Note: these 'words' (valid or invalid) are all the permutations of the word chanb. These words are obtained by scrambling the letters in chanb.