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

Input: Consider Input: Sentence: 'a name and clock lit up at night'. How many words contain the letter 'y' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a kitchen that is very nice and clean'. How many words contain the letter 't' in the sentence.

Output: 2


Input: Consider Input: Sentence: 'a man riding his bicycle down a street in the city'. How many words contain the letter 'm' in the sentence.


Output: 1