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


[Q]: Sentence: 'a man with a tennis rack on a court'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'this is a young woman getting ready to hit a tennis ball'. How many words start with the letter 't' in the sentence.
[A]:
3