beths ebths btehs tbehs etbhs tebhs behts ebhts bhets hbets ehbts hebts bthes tbhes bhtes hbtes thbes htbes ethbs tehbs ehtbs hetbs thebs htebs betsh ebtsh btesh tbesh etbsh tebsh besth ebsth bseth sbeth esbth sebth btseh tbseh bsteh sbteh tsbeh stbeh etsbh tesbh estbh setbh tsebh stebh behst ebhst bhest hbest ehbst hebst besht ebsht bseht sbeht esbht sebht bhset hbset bshet sbhet hsbet shbet ehsbt hesbt eshbt sehbt hsebt shebt bthse tbhse bhtse hbtse thbse htbse btshe tbshe bsthe sbthe tsbhe stbhe bhste hbste bshte sbhte hsbte shbte thsbe htsbe tshbe sthbe hstbe shtbe ethsb tehsb ehtsb hetsb thesb htesb etshb teshb esthb sethb tsehb stehb ehstb hestb eshtb sehtb hsetb shetb thseb htseb tsheb stheb hsteb shteb
Note: these 'words' (valid or invalid) are all the permutations of the word beths. These words are obtained by scrambling the letters in beths.