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

Input: Consider Input: Sentence: 'adult men playing with flying disc at popular beach'. How many words contain the letter 'o' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'people are parked along side the road by pay here signs'. How many words contain the letter 'a' in the sentence.

Output: 5

Input: Consider Input: Sentence: 'a old banana sitting in a wooden bowl'. How many words contain the letter 'm' in the sentence.
Output: 0