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 by a open refrigerator in a room'. How many words end with the letter 'a' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'a black and white cat is playing with a computer keyboard'. How many words end with the letter 'd' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a small white fridge against a purple wall'. How many words end with the letter 'a' in the sentence.

Ex Output:

2