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

Input: Consider Input: Sentence: 'a black and white photo of a plane sitting on a runway'. How many words contain the letter 'b' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'an over head view of people walking in a cramped area'. How many words contain the letter 'q' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'the girl is sitting on luggage bags near others waiting with their luggage'. How many words contain the letter 'i' in the sentence.


Output: 6