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

Example Input: Sentence: 'a man srufing the waves on a board in front of 3 tall pillars'. How many words contain the letter 'n' in the sentence.
Example Output: 5

Example Input: Sentence: 'a tennis player holds a ball as if to throw it in the air to serve it'. How many words contain the letter 'o' in the sentence.
Example Output: 4

Example Input: Sentence: 'a bathroom with a fancy toilet in the corner'. How many words contain the letter 'j' in the sentence.
Example Output:
0