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 bears sitting next to each other on a sidewalk'. How many words contain the letter 't' in the sentence.

Ex Output:
4


Ex Input:
Sentence: 'a table with two different pizzas on it'. How many words contain the letter 'j' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a pair of red scissors sitting on a newspaper'. How many words contain the letter 's' in the sentence.

Ex Output:

3