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

Input: Consider Input: Sentence: 'sitting room with couch and entertainment system in cabinets'. How many words contain the letter 'e' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'several people and a dog riding on a small boat'. How many words contain the letter 'l' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a brat with sauerkraut and mustard on a bun with a bottle of curry ketchup'. How many words contain the letter 's' in the sentence.


Output: 2