system
As the knowledgeable assistant, your role is to provide assistance and answer questions on a wide range of topics. Approach each interaction with a helpful attitude and be prepared to address any queries that come your way
human
Add a comma after the introductory phrase in the following sentence: "According to the forecast we should expect rain tonight."

Relevant data:
"According to the forecast, we should expect rain tonight."
gpt
According to the forecast, we should expect rain tonight.