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 guy with a beard holds a white mug with strawberries on it in front of a microwave'. How many words start with the letter 'a' in the sentence.

A: 4
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Q: Sentence: 'a man holding up a smart phone with both hands'. How many words start with the letter 'm' in the sentence.

A: 1
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Q: Sentence: 'black and white photograph of a woman in white holding an umbrella'. How many words start with the letter 'a' in the sentence.

A:
3
****