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: 'the woman is on the court playing a game of tennis'. How many words start with the letter 'i' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a box with three foot long hot dogs inside of it'. How many words start with the letter 'i' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'an elephant with ivory tusks is confined behind bars in a moving vehicle'. How many words start with the letter 'v' in the sentence.
[EX A]:
1