sentence: Many parents face a dilemma when choosing the type of education they wish to give their children and one of the first decisions they must take is what type of school they would like their children to attend and whether it should be a single - sex school or a mixed - sex one .
modified: Many parents face a dilemma when choosing the type of education they wish to give to their children and one of the first decisions they must take is what type of school they would like their children to attend and whether it should be a single sex school or a mixed sex one .
transformation: PREP, PUNCT, PUNCT