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

Input: Consider Input: Sentence: 'people walking down the sidewalk with no turn signs'. How many words contain the letter 'e' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a couple is fast asleep at 3 in the morning'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a train is being inspected as it sits on the tracks'. How many words contain the letter 'j' in the sentence.


Output: 0