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.
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Question: Sentence: 'an orange and white scooter carrying two passengers drives down a wet street while the passenger of the scooter holds a purple umbrella'. How many words start with the letter 'a' in the sentence.

Answer: 4


Question: Sentence: 'a sandwich vegetables and a beer sitting on a table'. How many words start with the letter 'a' in the sentence.

Answer: 4


Question: Sentence: 'a man wearing a straw hat and a black shirt'. How many words start with the letter 'a' in the sentence.

Answer:
4