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

Input: Consider Input: Sentence: 'a person skiing down part of a marked race course'. How many words contain the letter 'z' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'the street corner is flooded deep with water'. How many words contain the letter 'f' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a kitchen filled with a white stove top oven'. How many words contain the letter 't' in the sentence.


Output: 5