Complex sentence: The smallest of the triplets, is a non-stop ball of entertainment who is into everything and disarmingly naive about the commotion he causes he also has trouble obeying his father or living up to his promises at times but does try to make his father happy.
Split into simpler sentences: The smallest of the triplets, is a non-stop ball of entertainment who is into everything and disarmingly naive about the commotion he causes. He also has trouble obeying his father or living up to his promises at times but does try to make his father happy.