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

Input: Consider Input: Sentence: 'group of kids play frisbee golf in the middle of the woods'. How many words contain the letter 't' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'an elephant that is eating some leaves from a tree'. How many words contain the letter 'n' in the sentence.

Output: 3

Input: Consider Input: Sentence: 'police tow truck parked on a city street in front of stores'. How many words contain the letter 'r' in the sentence.
Output: 5