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

Input: Consider Input: Sentence: 'the beach has six open umbrellas on poles'. How many words contain the letter 'g' in the sentence.

Output: 0

Input: Consider Input: Sentence: 'a child on the sand and a boat and some water'. How many words contain the letter 's' in the sentence.

Output: 2

Input: Consider Input: Sentence: 'an lshaped couch in a living room with a coffee table'. How many words contain the letter 'w' in the sentence.
Output: 1