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

Input: Consider Input: Sentence: 'a train that is pulling into the station'. How many words contain the letter 't' in the sentence.

Output: 5


Input: Consider Input: Sentence: 'an lshaped desk covered in various computers and accessories'. How many words contain the letter 'e' in the sentence.

Output: 5


Input: Consider Input: Sentence: 'a man is outside skating on a board on concrete'. How many words contain the letter 'f' in the sentence.


Output: 0