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 closeup of a stack of mail on a desk'. How many words end with the letter 'p' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a middle aged male with glasses taking a picture of himself with a flip phone'. How many words end with the letter 's' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a larger boat amongst smaller ones in a harbor'. How many words end with the letter 'r' in the sentence.
[EX A]:
3