This is Sister

Sister is five years old.  Actually, she is five and A HALF years old.  

She was born with a sense of self and of the universe that is unparalleled.  When she tells you how it is, out of the blue, regardless of the subject matter, you just have to take it as fact.  

Sister's Random Statement of Fact:

"Do you know why we need to drink so much water?  When you keep eating and you never wash your hands, you get germs inside.  You have to drink a LAAHT of water to take the germs away."