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 red passenger train traveling passed a large tourist building'. How many words start with the letter 't' in the sentence.

A: 3
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Q: Sentence: 'a guy squatting down and tapping his food with a woman sitting down'. How many words start with the letter 'f' in the sentence.

A: 1
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Q: Sentence: 'a pair of scissors are being held behind someones back'. How many words start with the letter 'b' in the sentence.

A:
3
****