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

Input: Consider Input: Sentence: 'a man walking with rolling luggage and many bags'. How many words contain the letter 'g' in the sentence.

Output: 4

Input: Consider Input: Sentence: 'an image of a building with a steeple and birds flying overhead reflected in the water'. How many words contain the letter 'u' in the sentence.

Output: 1

Input: Consider Input: Sentence: 'a man in a white outfit holding a tennis racquet'. How many words contain the letter 'l' in the sentence.
Output: 1