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

Input: Consider Input: Sentence: 'a giraffe walking in the grass near a building'. How many words contain the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a woman standing in the dirt looking up at an elephant'. How many words contain the letter 'b' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a big bear sitting on top of a pole'. How many words contain the letter 'h' in the sentence.


Output: 0