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: 'a bus is parked on the side of a road in front of a building'. How many words start with the letter 'a' in the sentence.

Answer: 3


Question: Sentence: 'a man with baseball gear on holding a bat in his hands'. How many words start with the letter 'a' in the sentence.

Answer: 2


Question: Sentence: 'a middle aged couple playing tennis together on a sunny day'. How many words start with the letter 'a' in the sentence.

Answer:
3