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

Input: Consider Input: Sentence: 'some elephants in a field of grass near a tree'. How many words contain the letter 'k' in the sentence.

Output: 0


Input: Consider Input: Sentence: 'a crowd of people flying kites near the capitol building'. How many words contain the letter 'a' in the sentence.

Output: 3


Input: Consider Input: Sentence: 'a dining table featuring large sandwiches and drink'. How many words contain the letter 't' in the sentence.


Output: 2