Give 5 facts about the Great Lakes

Great Lakes are the largest freshwater system in the world
More than 20% of all the worlds freshwater is in the Great Lakes
Lake Superior contains half of the water in all the Great Lakes
Lake Superior is the largest freshwater lake in the world by surface area
Lake Michigan’s shore is home to the largest freshwater sand dunes in the world

Do you have more info about it ? i doubt this is the answer because i don't have all the information but if trouble was brewing in a clinic maybe it was an argument as to which clinic was better or smth of that nature