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

Input: Consider Input: Sentence: 'a close up of two people wearing ties'. How many words contain the letter 'o' in the sentence.

Output: 4


Input: Consider Input: Sentence: 'a man and a woman stand under an umbrella'. How many words contain the letter 's' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a champagne colored bus on road next to a building'. How many words contain the letter 'b' in the sentence.


Output: 2