This might only be cute to me.

When Kate was younger and not talking as well, Claire would always help her out with the big words. She would say, "Kate, say um." Kate would say, "um", Claire would say, "brella", Kate would repeat "brella." And together they would say umbrella. Now Kate likes to help us out every once in awhile. Kate says to me, "Mom, you need a ombalote." A what? She helped me out, "say om...balote." I needed an envelope.
The other morning I asked Kate what kind of cereal she wanted and she excitedly yelled, "PerMILLa! I love permilla!" That is granola. Claire wrinkled her nose in disgust and corrected her. "No Kate, say gr", Kate said, "gr." Claire said, "nilla." Kate said, "nilla." Claire said, "gernilla!" And they went back and forth arguing over permilla and gernilla.