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 male skateboarder in a black shirt doing a trick'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a tall giraffe kissing the bark of a brown tree'. How many words start with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a lady playing a game of tennis on a green and blue court'. How many words start with the letter 'l' in the sentence.
[A]:
1