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

Example Input: Sentence: 'a batter sings his bat at a baseball game'. How many words contain the letter 'h' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man in a restaurant makes the v sign with both hands'. How many words contain the letter 'n' in the sentence.
Example Output: 5

Example Input: Sentence: 'a woman in a brown shirt shopping for produce'. How many words contain the letter 't' in the sentence.
Example Output:
1