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

Input: Consider Input: Sentence: 'a young man in a bunch of waves on his board'. How many words contain the letter 'j' in the sentence.

Output: 0


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 woman hitting a tennis ball with a racquet'. How many words contain the letter 'b' in the sentence.


Output: 1