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

Ex Output:
1


Ex Input:
Sentence: 'a mirror hangs from the ceiling of a large room'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a bus is coming around a bend near a traffic light'. How many words end with the letter 'a' in the sentence.

Ex Output:

3