thigs htigs tihgs ithgs hitgs ihtgs thgis htgis tghis gthis hgtis ghtis tighs itghs tgihs gtihs igths giths higts ihgts hgits ghits ights gihts thisg htisg tihsg ithsg hitsg ihtsg thsig htsig tshig sthig hstig shtig tishg itshg tsihg stihg isthg sithg histg ihstg hsitg shitg ishtg sihtg thgsi htgsi tghsi gthsi hgtsi ghtsi thsgi htsgi tshgi sthgi hstgi shtgi tgshi gtshi tsghi stghi gsthi sgthi hgsti ghsti hsgti shgti gshti sghti tigsh itgsh tgish gtish igtsh gitsh tisgh itsgh tsigh stigh istgh sitgh tgsih gtsih tsgih stgih gstih sgtih igsth gisth isgth sigth gsith sgith higst ihgst hgist ghist ighst gihst hisgt ihsgt hsigt shigt ishgt sihgt hgsit ghsit hsgit shgit gshit sghit igsht gisht isght sight gsiht sgiht
Note: these 'words' (valid or invalid) are all the permutations of the word thigs. These words are obtained by scrambling the letters in thigs.