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 zebra is running toward a shady area under the trees'. How many words start with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'an airplane as it is taking off and is ascending into space'. How many words start with the letter 'a' in the sentence.
[A]: 5


[Q]: Sentence: 'a store display that has a lot of bananas on display for sale'. How many words start with the letter 's' in the sentence.
[A]:
2