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

Example Input: Sentence: 'a person resting on a bench outside a furniture store'. How many words contain the letter 'e' in the sentence.
Example Output: 6

Example Input: Sentence: 'a woman with long red hair packing herself into a suitcase'. How many words contain the letter 'i' in the sentence.
Example Output: 5

Example Input: Sentence: 'two men playing wii standing behind their couch'. How many words contain the letter 'f' in the sentence.
Example Output:
0