In this task, you need to count the number of words in a sentence that end with the given letter. Answer with numbers and not words.

[Q]: Sentence: 'a person is typing on a laptop computer'. How many words end with the letter 'a' in the sentence.
[A]: 2


[Q]: Sentence: 'a baby sitting on a baby reaching for a laptop'. How many words end with the letter 'a' in the sentence.
[A]: 3


[Q]: Sentence: 'a street sign near a rail road crossing'. How many words end with the letter 'a' in the sentence.
[A]:
2