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

Example Input: Sentence: 'an orange cat is lounging on a gray couch'. How many words contain the letter 'c' in the sentence.
Example Output: 2

Example Input: Sentence: 'a ram standing still in an empty pasture'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'this photo from the stands shows a batter at plate waiting for the pitcher'. How many words contain the letter 'c' in the sentence.
Example Output:
1