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

Example Input: Sentence: 'a child is lighting candles on a cake'. How many words contain the letter 't' in the sentence.
Example Output: 1

Example Input: Sentence: 'two elephants are standing by the concrete barrier'. How many words contain the letter 'c' in the sentence.
Example Output: 1

Example Input: Sentence: 'a man leaning against a stove in  a kitchen'. How many words contain the letter 'j' in the sentence.
Example Output:
0