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 silver and blue amtrak train sitting below tall buildings'. How many words start with the letter 'b' in the sentence.

A: 3
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Q: Sentence: 'a large body of water with a boat on it'. How many words start with the letter 'o' in the sentence.

A: 2
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Q: Sentence: 'some people who are sitting on some bleachers'. How many words start with the letter 's' in the sentence.

A:
3
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