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 train rides across a bridge over water'. How many words end with the letter 's' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'some seagulls are flying over some small boats'. How many words end with the letter 'e' in the sentence.

Ex Output:
3


Ex Input:
Sentence: 'people gather around as a man gets into an oldtime airplane'. How many words end with the letter 'o' in the sentence.

Ex Output:

1