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 yellow train traveling towards a train station'. How many words end with the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'orange trains at standstill in metropolitan transit depots'. How many words end with the letter 't' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'a group of zebra on a grassy field'. How many words end with the letter 'f' in the sentence.

Ex Output:

1


