sentence: Firstly , it is a good idea for young children to do physical activity . That is the first step to doing exercise , then competing in sports will encourage competitors to make an extra effort .
modified: Firstly , it is a good idea for young children do physical activity that is the first step to do exercise , then to compete sports will make competitior to make an extra effort .
transformation: VERB:FORM, PUNCT, VERB:FORM, OTHER, VERB, SPELL