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.

[EX Q]: Sentence: 'a man attempting to instruct a small child to use a mechanical toothbrush'. How many words end with the letter 'o' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a giraffe stands in front of a big tree'. How many words end with the letter 'e' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a group of people playing with a nintendo wii'. How many words end with the letter 'a' in the sentence.
[EX A]:
2