Counting

Yesterday while trying to get ee shuen to take her afternoon nap. Ee Shuen start counting.

Ee Shuen: one, two, three, four, four, four, four (cannot get pass four)
Ah ma: FIVE!! (helping ee shuen))
Ee Shuen: six

amazingly ee shuen continue from ah ma.

We just wonder if she understand the meaning of numbers or she is just saying them in sequence.