sentence: Nowadays , they have to work through a lot of issues while they are in their adolescence . They begin to have a lack of self - esteem , depression , social pressure , and all this can cause a lot of problems .
modified: Nowadays they have to work through a lot of issues while they are in their adolescence , they begin to have lack of self - esteem , depression , social pressure , and all this can cause a lot of problems .
transformation: PUNCT, PUNCT, DET