There are three sisters．The first one goes up to her mom and asks，“Mommy，why am I called Rose？”The mom answers，“That’s because a rose petal fell on my tummy while you were in there．”The second sister goes up to her and asks，“Mommy，why am I called Violet？”The mom answers，“That’s because a violet petal fell on my tummy while you were in there．”The third sister staggers up to her and asks，“Mommy，why am I called Piano？”