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

Let me give you an example: Sentence: 'two gray birds standing in a green field'. How many words contain the letter 'a' in the sentence.
The answer to this example can be: 3
Here is why: The words 'gray', 'standing', and 'a' contain the letter 'a'. So, the answer is 3.

OK. solve this:
Sentence: 'a woman is outside on her cell phone'. How many words contain the letter 'u' in the sentence.
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
1