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 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.

A: 3
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Q: Sentence: 'a person leans back while holding onto a flying object'. How many words start with the letter 'a' in the sentence.

A: 2
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Q: Sentence: 'a red car near a fire hydrant with multiple hose slots'. How many words start with the letter 'n' in the sentence.

A:
1
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