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 black and white cat is sitting on the bathroom sink'. How many words start with the letter 'i' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'street signs for the intersection of library way and fifth avenue'. How many words start with the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a woman bending over next to a bag of luggage'. How many words start with the letter 'a' in the sentence.
[EX A]:
2