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.

[EX Q]: Sentence: 'two trains pass over the tracks over a river'. How many words end with the letter 'o' in the sentence.
[EX A]: 1

[EX Q]: Sentence: 'a man holds the strings of a multicolored kite'. How many words end with the letter 's' in the sentence.
[EX A]: 2

[EX Q]: Sentence: 'a surfer riding the crest of a wave'. How many words end with the letter 'r' in the sentence.
[EX A]:
1