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 flock of birds some on the ground others are perched on a park bench'. How many words end with the letter 'k' in the sentence.
[A]: 2


[Q]: Sentence: 'a bearded man sits at his kitchen table by the window in the background in the foreground is a small cluttered kitchen that has a washing machine installed beneath the sink'. How many words end with the letter 'k' in the sentence.
[A]: 1


[Q]: Sentence: 'a traffic light that is near a brick building'. How many words end with the letter 's' in the sentence.
[A]:
1