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 large herd of elephant wading in a dirty river'. How many words end with the letter 'r' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'this is someone feeding a digital parking machine'. How many words end with the letter 'e' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a sleigh is crafted with gifts and a teddy with pillow and blanket'. How many words end with the letter 'a' in the sentence.

Ex Output:

2