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

Example Input: Sentence: 'the jet is flying through the sky during the day'. How many words contain the letter 'i' in the sentence.
Example Output: 3

Example Input: Sentence: 'the bowl on the table is full of cut fruit'. How many words contain the letter 'b' in the sentence.
Example Output: 2

Example Input: Sentence: 'a woman in a white tennis outfit is hitting a tennis ball'. How many words contain the letter 'b' in the sentence.
Example Output:
1