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: 'woman standing on the beach with a large sailboat behind her'. How many words start with the letter 's' in the sentence.

A: 2
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Q: Sentence: 'a bathroom mirror reflecting a sink and bathtub'. How many words start with the letter 'a' in the sentence.

A: 3
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Q: Sentence: 'man in racing suit and helmet on skateboard on roadway'. How many words start with the letter 'o' in the sentence.

A:
2
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