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

Example Input: Sentence: 'sitting room with couch and entertainment system in cabinets'. How many words contain the letter 'e' in the sentence.
Example Output: 3

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: 'assorted food items displayed on metal serving dish on orange topped table'. How many words contain the letter 'l' in the sentence.
Example Output:
3