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 baby sitting on a baby reaching for a laptop'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a woman in a dress beneath a ladder holding an umbrella'. How many words end with the letter 'n' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a sante fe train runs on the tracks through the valley'. How many words end with the letter 'n' in the sentence.

Ex Output:

2