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.

Sentence: 'a tennis player at the us open walking off the court'. How many words end with the letter 's' in the sentence.
2

Sentence: 'a train riding through tracks in a large train station'. How many words end with the letter 'n' in the sentence.
4

Sentence: 'an island of sinks in the restroom is unusual'. How many words end with the letter 'n' in the sentence.

2

