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

Input: Consider Input: Sentence: 'a white sand beach with chairs umbrellas and people'. How many words contain the letter 't' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a clock in the middle of a building'. How many words contain the letter 'x' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a female tennis player preparing to serve the ball'. How many words contain the letter 'v' in the sentence.


Output: 1