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

Input: Consider Input: Sentence: 'two angles of a frosted donut with a bite taken out of the side'. How many words contain the letter 'z' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a tree by a house has a traffic sign attached to it'. How many words contain the letter 'm' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a man playing a game with a remote controller'. How many words contain the letter 'f' in the sentence.
Output: 0