Annie has learned to use certain words such as "jam," "apple," "book," and "hand." it suggests that these words are mostly used:

These are words that are typically used at the ends of sentences. As has been borne out by research, the recency effect is at play here, which shows that the most often used words by infants and children learning to speak are those that are at the ends of sentences.

The president's only official legislative duty is to sign or veto bills.