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

Example Input: Sentence: 'a herd of giraffe grazing from a feeder'. How many words contain the letter 'h' in the sentence.
Example Output: 1

Example Input: Sentence: 'a view from inside a train cart going down a track'. How many words contain the letter 'e' in the sentence.
Example Output: 2

Example Input: Sentence: 'boats are lined up at dock that is on a coastline'. How many words contain the letter 't' in the sentence.
Example Output:
4