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

Example Input: Sentence: 'the noodle salad has many spices in it'. How many words contain the letter 'v' in the sentence.
Example Output: 0

Example Input: Sentence: 'a person is riding a bicycle on the street'. How many words contain the letter 'b' in the sentence.
Example Output: 1

Example Input: Sentence: 'three colorful kites flying up in the sky'. How many words contain the letter 's' in the sentence.
Example Output:
2