nahal anhal nhaal hnaal ahnal hanal naahl anahl naahl anahl aanhl aanhl nhaal hnaal nahal anhal hanal ahnal ahanl haanl aahnl aahnl haanl ahanl nahla anhla nhala hnala ahnla hanla nalha anlha nlaha lnaha alnha lanha nhlaa hnlaa nlhaa lnhaa hlnaa lhnaa ahlna halna alhna lahna hlana lhana naalh analh naalh analh aanlh aanlh nalah anlah nlaah lnaah alnah lanah nalah anlah nlaah lnaah alnah lanah aalnh aalnh alanh laanh alanh laanh nhala hnala nahla anhla hanla ahnla nhlaa hnlaa nlhaa lnhaa hlnaa lhnaa nalha anlha nlaha lnaha alnha lanha halna ahlna hlana lhana alhna lahna ahaln haaln aahln aahln haaln ahaln ahlan halan alhan lahan hlaan lhaan aalhn aalhn alahn laahn alahn laahn halan ahlan hlaan lhaan alhan lahan
Note: these 'words' (valid or invalid) are all the permutations of the word nahal. These words are obtained by scrambling the letters in nahal.