Detailed Instructions: In this task, you need to count the number of words in a sentence that start with the given letter. Answer with numbers and not words.
Q: Sentence: 'a table is decorated with an oscar wine glasses and a vase with pink flowers'. How many words start with the letter 'a' in the sentence.
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
4