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: 'dude in shades sits and eats a hotdog'. How many words start with the letter 's' in the sentence.

A: 2
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Q: Sentence: 'a picture of a zebra that is walking in the grass'. How many words start with the letter 'z' in the sentence.

A: 1
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Q: Sentence: 'a brown and white dog standing on top of a leaf covered field'. How many words start with the letter 'a' in the sentence.

A:
3
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