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.
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Question: Sentence: 'a cat is laying on a keyboard in front of double monitors'. How many words start with the letter 'm' in the sentence.

Answer: 1


Question: Sentence: 'there is a lap top on a desk at a office'. How many words start with the letter 'o' in the sentence.

Answer: 2


Question: Sentence: 'a black and gray pigeon some windows and a building'. How many words start with the letter 'b' in the sentence.

Answer:
2