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

Input: Consider Input: Sentence: 'a grey cat sitting in a metal kitchen sink next to cans of soda'. How many words contain the letter 't' in the sentence.

Output: 6

Input: Consider Input: Sentence: 'a kitchen that is very nice and clean'. How many words contain the letter 't' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'a white bench on a cliff by the sea shore on a sunny day'. How many words contain the letter 'k' in the sentence.
Output: 0