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

Ex Input:
Sentence: 'an image of a building with a steeple and birds flying overhead reflected in the water'. How many words contain the letter 'u' in the sentence.

Ex Output:
1


Ex Input:
Sentence: 'the noodle salad has many spices in it'. How many words contain the letter 'v' in the sentence.

Ex Output:
0


Ex Input:
Sentence: 'a table with two different pizzas on it'. How many words contain the letter 'j' in the sentence.

Ex Output:

0