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

Input: Consider Input: Sentence: 'a woman with a green umbrella crosses the wet street'. How many words contain the letter 'q' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a cat in a tie sits on the couch'. How many words contain the letter 't' in the sentence.

Output: 4

Input: Consider Input: Sentence: 'several riders on horses following a trail in the mountains'. How many words contain the letter 'f' in the sentence.
Output: 1