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

Example Input: Sentence: 'some stop lights that are at an intersection'. How many words contain the letter 'c' in the sentence.
Example Output: 1

Example Input: Sentence: 'looking out a window at a tall building with a clock on the face'. How many words contain the letter 'l' in the sentence.
Example Output: 4

Example Input: Sentence: 'a giraffe standing next to a tree with no branches'. How many words contain the letter 'q' in the sentence.
Example Output:
0