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 very tall tower with a clock on each of its sides'. How many words end with the letter 'f' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man in a white shirt repairing a toilet in a white bathroom'. How many words end with the letter 'g' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a clean living area with a brown sofa with green pillows'. How many words end with the letter 'n' in the sentence.

Ex Output:

3