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 large airplane and a bench in a field'. How many words end with the letter 'd' in the sentence.
Example Output: 2

Example Input: Sentence: 'a woman and two young children sit on a bench'. How many words end with the letter 'a' in the sentence.
Example Output: 2

Example Input: Sentence: 'an image of a guy riding waves on a surfboard'. How many words end with the letter 'n' in the sentence.
Example Output:
2