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: 'a photo of a waterway with several boats along the shore'. How many words start with the letter 'w' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'two packaged frozen pizzas that are on a cookie sheet and the boxes behind the pizzas'. How many words start with the letter 't' in the sentence.
[EX A]: 4

[EX Q]: Sentence: 'a blanket with skinny straws and s pair of scissors on it'. How many words start with the letter 's' in the sentence.
[EX A]:
4