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: 'a old picture of workers building the railroad'. How many words end with the letter 'd' in the sentence.
Example Output: 2

Example Input: Sentence: 'two zebras that are standing in the dirt'. How many words end with the letter 'e' in the sentence.
Example Output: 2

Example Input: Sentence: 'a person in a full body wetsuit on a surfboard in the water riding a wave'. How many words end with the letter 'n' in the sentence.
Example Output:
4