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 man in a room playing with his wii remote'. How many words end with the letter 'n' in the sentence.

Ex Output:
2


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: 'the clock face on the exterior of a building'. How many words end with the letter 'k' in the sentence.

Ex Output:

1