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 person walking on a street with a umbrella'. How many words start with the letter 's' in the sentence.

A: 1
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Q: Sentence: 'a bed room with a dresser a wardrobe and a bed'. How many words start with the letter 'a' in the sentence.

A: 5
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Q: Sentence: 'a man and a woman sitting under a red street sign'. How many words start with the letter 'r' in the sentence.

A:
1
****