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

Example Input: Sentence: 'the two ladies was sitting  on the sofa'. How many words contain the letter 'l' in the sentence.
Example Output: 1

Example Input: Sentence: 'people holding a surfboard and walking down the beach'. How many words contain the letter 'n' in the sentence.
Example Output: 4

Example Input: Sentence: 'little guy with bat raised to hit arriving baseball'. How many words contain the letter 't' in the sentence.
Example Output:
5