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

Ex Input:
Sentence: 'a silver truck a street a person and buildings'. How many words contain the letter 'l' in the sentence.

Ex Output:
2

Ex Input:
Sentence: 'a counter top that has many pots and ingredients on it'. How many words contain the letter 'b' in the sentence.

Ex Output:
0

Ex Input:
Sentence: 'assorted food items displayed in white dish on wooden table'. How many words contain the letter 'u' in the sentence.

Ex Output:
0