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 young woman is picking a black cat up off of the floor'. How many words start with the letter 'a' in the sentence.

A: 2
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Q: Sentence: 'a plate has ribs broccoli and mashed potatoes on a plate'. How many words start with the letter 'a' in the sentence.

A: 3
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Q: Sentence: 'a black and white cat is sitting on a desk'. How many words start with the letter 'w' in the sentence.

A:
1
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