hotsr ohtsr htosr thosr othsr tohsr hostr ohstr hsotr shotr oshtr sohtr htsor thsor hstor shtor tshor sthor otshr toshr osthr sothr tsohr stohr hotrs ohtrs htors thors othrs tohrs horts ohrts hrots rhots orhts rohts htros thros hrtos rhtos trhos rthos otrhs torhs orths roths trohs rtohs hosrt ohsrt hsort short oshrt sohrt horst ohrst hrost rhost orhst rohst hsrot shrot hrsot rhsot srhot rshot osrht sorht orsht rosht sroht rsoht htsro thsro hstro shtro tshro sthro htrso thrso hrtso rhtso trhso rthso hsrto shrto hrsto rhsto srhto rshto tsrho strho trsho rtsho srtho rstho otsrh tosrh ostrh sotrh tsorh storh otrsh torsh ortsh rotsh trosh rtosh osrth sorth orsth rosth sroth rsoth tsroh stroh trsoh rtsoh srtoh rstoh
Note: these 'words' (valid or invalid) are all the permutations of the word hotsr. These words are obtained by scrambling the letters in hotsr.