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

Input: Consider Input: Sentence: 'two skiers standing side by side in the snow posing for a picture'. How many words contain the letter 'u' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a microwaved broccoli and cheese dish and a spoon'. How many words contain the letter 'n' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a bathroom with a white tub has patterend wallpaper'. How many words contain the letter 'e' in the sentence.


Output: 3