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

Example 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.
Example Output: 1

Example Input: Sentence: 'two giraffes with their heads in the tree'. How many words contain the letter 'o' in the sentence.
Example Output: 1

Example Input: Sentence: 'four men in a line with luggage at the airport'. How many words contain the letter 'q' in the sentence.
Example Output:
0