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 is holding the hand of a boy who is leaning on a fire hydrant'. How many words start with the letter 'a' in the sentence.
[A]: 3


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


[Q]: Sentence: 'horses are being walked around a race track'. How many words start with the letter 't' in the sentence.
[A]:
1