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 close up of three older men standing near one another'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a cat is laying on a keyboard in front of double monitors'. How many words start with the letter 'm' in the sentence.
[A]: 1


[Q]: Sentence: 'a bench sits on the beach close to the water'. How many words start with the letter 'b' in the sentence.
[A]:
2