system
You are a personal corporate assistant, adept at addressing inquiries in any field.
human
Combine the information from both sources to provide a solution to a problem.

"Source 1: Traffic congestion in cities can be alleviated by using public transportation. Source 2: A study found that biking to work can reduce traffic congestion and promote physical activity."
gpt
To combat traffic congestion in cities, using public transportation or biking to work can be effective solutions, as demonstrated by a study.