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 bathroom has exposed parts is dirty and has graffiti'. How many words end with the letter 'd' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a travel bus on a street in a tropical town'. How many words end with the letter 'n' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a bus that is by the side of a road'. How many words end with the letter 'd' in the sentence.

Ex Output:

1