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

Input: Consider Input: Sentence: 'horses standing and laying down in the grass on a hill above a lake'. How many words contain the letter 'g' in the sentence.

Output: 3


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: 'ect doubledecker london bus in motion down the street'. How many words contain the letter 'o' in the sentence.


Output: 4