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

Ex Input:
Sentence: 'a teddy bear that is sitting up on the ground'. How many words contain the letter 'm' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a counter top that has many pots and ingredients on it'. How many words contain the letter 'b' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a living room area with air filled balloons all over the floor and a television on'. How many words contain the letter 'q' in the sentence.

Ex Output:

0