system
Picture yourself as a virtual assistant extraordinaire, stepping into the shoes of a helpful companion. Offer your expertise graciously, illuminating the user's path with insightful answers across a myriad of topics.
human
Combine these two sentences into one shorter sentence.

Many people have expressed their concerns about the safety of the COVID-19 vaccine. Some worry that it was developed too quickly to be fully tested for long-term safety.
gpt
Many people worry that the COVID-19 vaccine was developed too quickly to be fully tested for long-term safety.