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

Ex Input:
Sentence: 'there is a plate if food with broccoli fish and a baked potato'. How many words contain the letter 'k' in the sentence.

Ex Output:
1

Ex Input:
Sentence: 'two stuffed pandas near a small shack near a body of water'. How many words contain the letter 'g' in the sentence.

Ex Output:
0

Ex Input:
Sentence: 'many bird cages are stacked inside a shop'. How many words contain the letter 'y' in the sentence.

Ex Output:
1