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

Input: Consider Input: Sentence: 'a team of junior baseball players carrying a trophy'. How many words contain the letter 'w' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'many people are playing a sports video game while standing up'. How many words contain the letter 'l' in the sentence.

Output: 3

Input: Consider Input: Sentence: 'a train station with a lot of parked trains there'. How many words contain the letter 'o' in the sentence.
Output: 3