Add spaces between the words in the following text: ManysmallmomandpopcleanerswhoaretryingtogetawayfromusingpercarechangingovertoDF-2000.AlthoughDF-2000islesstoxicthanperc,itisstillapetroleum-basedsolventandhasitsownsetofproblems.
Many small mom and pop cleaners who are trying to get away from using perc are changing over to DF-2000. Although DF-2000 is less toxic than perc, it is still a petroleum-based solvent and has its own set of problems.