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

Example Input: Sentence: 'an airplane in the sky trailing condensation'. How many words contain the letter 'p' in the sentence.
Example Output: 1

Example Input: Sentence: 'a surfer in a black wet suit riding a wave in the ocean'. How many words contain the letter 'x' in the sentence.
Example Output: 0

Example Input: Sentence: 'some white buildings a traffic lights and some clocks'. How many words contain the letter 'e' in the sentence.
Example Output:
3