Column A contains the search query
Column B has G, E, or Y depending on which engine produced the best results on the search query before Relona's optimizations. G indicates that Google was better, E indicates that Google and Yahoo were equal and Y indicates that Yahoo was better.
Column C shows what happens when Relona is used to enhance Yahoo. G indicates that Google continues to be better on that query. Y+R indicates that Yahoo enhanced by Relona is better. E indicates that Yahoo+Relona was equal to Google on this query.
Column D indicates if Relona was able to improve Yahoo's results.