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

Input: Consider Input: Sentence: 'a man holding an owl in a lush green field'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a woman in a wheelchair is about to play tennis'. How many words contain the letter 'r' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'the thermometer is on the wall above the cafe sign'. How many words contain the letter 'w' in the sentence.


Output: 1