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 wall with an exit sign fan and clock'. How many words end with the letter 'n' in the sentence.
3

Sentence: 'a group of horses standing and laying in a grassy field'. How many words end with the letter 'f' in the sentence.
1

Sentence: 'a knitted teddy bear hanging off an afghan'. How many words end with the letter 'g' in the sentence.

1