{"John Deere":["6600 and 7700 Combines; 646 and 646B Compactors; 690 and 690A Excavators; 770","770A and 772A Graders; 500","500A","500B","500C","510","600","6030; 644","644A and 644B Indust/Consts; 760A Scraper; 3020","4000","4020","4230","4520","5020","5200","5400","700A and 7520"]}