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

Input: Consider Input: Sentence: 'a pair of feet wearing slippers pointed at the floor'. How many words contain the letter 'e' in the sentence.

Output: 5

Input: Consider Input: Sentence: 'a tennis player holds a ball as if to throw it in the air to serve it'. How many words contain the letter 'o' in the sentence.

Output: 4

Input: Consider Input: Sentence: 'a close up of two remotes sitting next to each other'. How many words contain the letter 'g' in the sentence.
Output: 1