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 white motorcycle is next to a store front that says macau welcomes you'. How many words end with the letter 's' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'the laptop is sitting next to the computer monitor'. How many words end with the letter 'p' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a man riding the waves on a surf board'. How many words end with the letter 'a' in the sentence.

Ex Output:

2