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

Ex Input:
Sentence: 'a laptop a table a mouse some dirt and water'. How many words contain the letter 'u' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'a white pickup truck thats parked on the corner of an intersection'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'rows of red utility trucks with man walking by them'. How many words contain the letter 't' in the sentence.

Ex Output:

4