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 man who is holding some food near his mouth'. How many words start with the letter 'f' in the sentence.

A: 1
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Q: Sentence: 'on one plate there is glazed donut and on the other plate there is mug of hot chocolate with a leaf shape swirled in it'. How many words start with the letter 's' in the sentence.

A: 2
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Q: Sentence: 'a room with a projector and a lot of chairs'. How many words start with the letter 'a' in the sentence.

A:
4
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