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 man in shorts and tie sitting at desk with coffee'. How many words end with the letter 'g' in the sentence.
Example Output: 1

Example Input: Sentence: 'a line of motorcycles arriving at an outdoor event'. How many words end with the letter 'e' in the sentence.
Example Output: 1

Example Input: Sentence: 'an elephant sits on the dirt near some water'. How many words end with the letter 'n' in the sentence.
Example Output:
2