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

Input: Consider Input: Sentence: 'a red car parked with a gas pump inserted into it'. How many words contain the letter 'l' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a smiling man holds out a card with color swatches'. How many words contain the letter 'i' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'a person that is wearing a hat and brushing their teeth'. How many words contain the letter 'l' in the sentence.
Output: 0