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

Example Input: Sentence: 'the tall giraffes are communicating with each other by the tree'. How many words contain the letter 'j' in the sentence.
Example Output: 0

Example Input: Sentence: 'a train that is pulling into the station'. How many words contain the letter 't' in the sentence.
Example Output: 5

Example Input: Sentence: 'a guy leading a bunch of people in a choir'. How many words contain the letter 'y' in the sentence.
Example Output:
1