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 yellow train traveling towards a train station'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'people outside of a cable fence looking at an elephant'. How many words end with the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a train sitting on some tracks next to a sidewalk'. How many words end with the letter 'g' in the sentence.

Ex Output:

1