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 woman that is holding up a banana'. How many words start with the letter 'w' in the sentence.
[A]: 1


[Q]: Sentence: 'a blue bench a house and some bushes'. How many words start with the letter 'b' in the sentence.
[A]: 3


[Q]: Sentence: 'a woman sitting on top of a snow covered slope'. How many words start with the letter 's' in the sentence.
[A]:
3