In this task, you need to count the number of words in a sentence that contain the given letter

Ex Input:
Sentence: 'a group of people cooking pancakes in the field'. How many words contain the letter 'g' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'an untidy room with clothes bottles next to an oven'. How many words contain the letter 'a' in the sentence.

Ex Output:
2


Ex Input:
Sentence: 'an image of a small child dressed in ski clothing'. How many words contain the letter 'q' in the sentence.

Ex Output:

0