sentence: Although they want the best for their children , sometimes it is difficult because they are tired and they tend to prepare junk food and allow them to spend their time on the internet or playing with video games .
modified: Although they want the best for their children sometimes is difficult because they are tired and they tend to prepare junk food and allow them to spend their time on the internet or playing with the game machine .
transformation: PUNCT, PRON, DET, NOUN