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 park is full of patrons on a fall day'. How many words end with the letter 's' in the sentence.
2

Sentence: 'a person on a surf board riding a big wave'. How many words end with the letter 'd' in the sentence.
1

Sentence: 'a first baseman and umpire standing on a field'. How many words end with the letter 'n' in the sentence.

2