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

Input: Consider Input: Sentence: 'two women in an arena with a cow'. How many words contain the letter 'u' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a group of bears sitting next to each other on a sidewalk'. How many words contain the letter 't' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a sandy beach with many kites flying in the air'. How many words contain the letter 'l' in the sentence.


Output: 1