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 travel bus on a street in a tropical town'. How many words end with the letter 'n' in the sentence.
Example Output: 3

Example Input: Sentence: 'two people at the beach carrying surf boards over their heads'. How many words end with the letter 'e' in the sentence.
Example Output: 2

Example Input: Sentence: 'a water facet used by the fire department'. How many words end with the letter 'a' in the sentence.
Example Output:
1