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 person on a snowboard on a snowy day'. How many words start with the letter 'a' in the sentence.

A: 3
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Q: Sentence: 'a very cute long haired dog laying on a pillow'. How many words start with the letter 'v' in the sentence.

A: 1
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Q: Sentence: 'two people reaching for a flying frisbee in the park'. How many words start with the letter 'p' in the sentence.

A:
2
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