Your question is Explain an NLP Problem Clearly. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You are speaking with non-technical stakeholders about a venture problem that may need an NLP system, a time-series model, or both. They want to know how you would frame the problem, translate it into a machine learning task, and explain the path from raw data to a usable model in plain language.
How would you explain a time-series or NLP problem if the venture required it?