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.

Example Input: Sentence: 'group of skiers posing for a picture with snow mountains behind them'. How many words end with the letter 'w' in the sentence.
Example Output: 1

Example Input: Sentence: 'a woman stands in front of a display case holding an ornamental vase that looks like two by reflection'. How many words end with the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'a man and woman ride a horse carriage on top of cobble stones'. How many words end with the letter 'a' in the sentence.
Example Output:
2