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

Example Input: Sentence: 'a man sits on a bench with a dog in lap reading'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'pair of one kind of birds and another bird perched on a railing'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'a group of goats stand in a field as they graze'. How many words contain the letter 'w' in the sentence.
Example Output:
0