In GraphQL what's the meaning of "edges" and "node"? : <p>I am consuming a particular GraphQL endpoint and although I am supplying a clean JSON structure as a query, when I get the results I get "edges" and 
"node" tags. It seems as if it is polluting my data with no obvious benefit. Why is it there and is it possible to get rid of those for faster and simpler parsing of data?</p>
