Learning by association

You know that a child is completely brained washed by Sesame Street when this conversation takes place:-

Adult: What colour is this? (holding on to a red magic pen)
Child: Elmo colour
Adult: (?????!) What colour is this? (yellow pen)
Child: Big bird colour
And the list goes on with Oscar (green), Abby Cadabby (pink), Ernie (orange) etc with the entire box of magic pens being represented by the Sesame Street crew.