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.

[EX Q]: Sentence: 'people walking down the street while some people ride their bicycles'. How many words start with the letter 'w' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a woman is standing in the kitchen using her phone'. How many words start with the letter 'w' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a tennis match in progress in a stadium'. How many words start with the letter 'm' in the sentence.
[EX A]:
1