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

Input: Consider Input: Sentence: 'a person that is playing a tennis game'. How many words contain the letter 'j' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a horse and a donkey stand in a fenced field'. How many words contain the letter 'd' in the sentence.

Output: 5

Input: Consider Input: Sentence: 'a bunch of old weathered teddy bears hanging and attached to a tree'. How many words contain the letter 'd' in the sentence.
Output: 5