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 white van sits outside of a white building'. How many words end with the letter 'f' in the sentence.
Example Output: 1

Example Input: Sentence: 'a bunch of birds that are sitting on steps'. How many words end with the letter 'g' in the sentence.
Example Output: 1

Example Input: Sentence: 'an all white modern bathroom with double sinks'. How many words end with the letter 'n' in the sentence.
Example Output:
2