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 group of people are sitting around a table eating cake'. How many words end with the letter 'a' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a male tennis player in a yellow shirt is playing tennis'. How many words end with the letter 's' in the sentence.
[EX A]: 3

[EX Q]: Sentence: 'a flock of birds floating in the middle of a lake'. How many words end with the letter 'k' in the sentence.
[EX A]:
1