coops ocops coops ocops oocps oocps copos ocpos cpoos pcoos opcos pocos copos ocpos cpoos pcoos opcos pocos oopcs oopcs opocs poocs opocs poocs coosp ocosp coosp ocosp oocsp oocsp cosop ocsop csoop scoop oscop socop cosop ocsop csoop scoop oscop socop ooscp ooscp osocp soocp osocp soocp copso ocpso cposo pcoso opcso pocso cospo ocspo csopo scopo oscpo socpo cpsoo pcsoo cspoo scpoo pscoo spcoo opsco posco ospco sopco psoco spoco copso ocpso cposo pcoso opcso pocso cospo ocspo csopo scopo oscpo socpo cpsoo pcsoo cspoo scpoo pscoo spcoo opsco posco ospco sopco psoco spoco oopsc oopsc oposc poosc oposc poosc oospc oospc osopc soopc osopc soopc opsoc posoc ospoc sopoc psooc spooc opsoc posoc ospoc sopoc psooc spooc
Note: these 'words' (valid or invalid) are all the permutations of the word coops. These words are obtained by scrambling the letters in coops.