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 sitting in a living room next to other people'. How many words start with the letter 'r' in the sentence.

A: 1
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Q: Sentence: 'a zebra is running toward a shady area under the trees'. How many words start with the letter 'a' in the sentence.

A: 3
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Q: Sentence: 'a computer with a farm on the screen on top of a desk'. How many words start with the letter 'o' in the sentence.

A:
3
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