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 traffic light with a couple of green street signs mounted to its sides'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'several jockeys ride their horses in a horse race'. How many words end with the letter 'r' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'an image of a truck parked next to a building'. How many words end with the letter 'k' in the sentence.

Ex Output:

1