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

Input: Consider Input: Sentence: 'three people that are looking at a monitor on the left side of the photo'. How many words contain the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'man and woman wearing all red standing in a snowy field'. How many words contain the letter 'k' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'young girl sitting on a couch smiling on her cell phone'. How many words contain the letter 'x' in the sentence.


Output: 0