pheer hpeer peher epher heper ehper pheer hpeer peher epher heper ehper peehr epehr peehr epehr eephr eephr heepr ehepr heepr ehepr eehpr eehpr phere hpere pehre ephre hepre ehpre phree hpree prhee rphee hrpee rhpee perhe eprhe prehe rpehe erphe rephe herpe ehrpe hrepe rhepe erhpe rehpe phere hpere pehre ephre hepre ehpre phree hpree prhee rphee hrpee rhpee perhe eprhe prehe rpehe erphe rephe herpe ehrpe hrepe rhepe erhpe rehpe peerh eperh peerh eperh eeprh eeprh pereh epreh preeh rpeeh erpeh repeh pereh epreh preeh rpeeh erpeh repeh eerph eerph ereph reeph ereph reeph heerp eherp heerp eherp eehrp eehrp herep ehrep hreep rheep erhep rehep herep ehrep hreep rheep erhep rehep eerhp eerhp erehp reehp erehp reehp
Note: these 'words' (valid or invalid) are all the permutations of the word pheer. These words are obtained by scrambling the letters in pheer.