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

Example Input: Sentence: 'a man sits on a bench with a dog in lap reading'. How many words contain the letter 'x' 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: 'an airplane flying above the landscape getting ready to land'. How many words contain the letter 'h' in the sentence.
Example Output:
1