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 Input:
Sentence: 'a woman and a man holding wii controllers in their hand'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a man riding a skateboard on top of a metal rail'. How many words end with the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a large gray elephant walking through a lush green field'. How many words end with the letter 'a' in the sentence.

Ex Output:

2