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

Example Input: Sentence: 'a kitchen with hard wood floors and a stove top oven'. How many words contain the letter 'g' in the sentence.
Example Output: 0

Example Input: Sentence: 'two women in an arena with a cow'. How many words contain the letter 'u' in the sentence.
Example Output: 0

Example Input: Sentence: 'a small child plays bowling on the nintendo wii'. How many words contain the letter 'n' in the sentence.
Example Output:
3