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

Input: Consider Input: Sentence: 'an acoustic guitar is shown laying on a bed'. How many words contain the letter 'l' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'a mirror above a bathroom sink next to a window'. How many words contain the letter 'v' in the sentence.

Output: 1


Input: Consider Input: Sentence: 'several long boats are lined up in a canal'. How many words contain the letter 'h' in the sentence.


Output: 0