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

Input: Consider Input: Sentence: 'the two ladies was sitting  on the sofa'. How many words contain the letter 'l' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a glass vase with clear glass marbles in it and purple flowers coming out of the vase'. How many words contain the letter 'd' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a fresh lunch of fries ranch dressing and pita rolls'. How many words contain the letter 'v' in the sentence.


Output: 0