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 sitting at top of stairs talking on phone and smoking a cigarette'. How many words start with the letter 's' in the sentence.

A: 3
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Q: Sentence: 'a man at a restaurant smiling while preparing pizzas'. How many words start with the letter 'p' in the sentence.

A: 2
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Q: Sentence: 'a black and white cat sits in a bathroom sink'. How many words start with the letter 'a' in the sentence.

A:
3
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