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faster if","Stop working after 1 week","I worry about the durability",{"topic":692,"percentOfMentions":693,"verbatims":694},"Functionality-Overall",0.0746,[695,696,697],"It does not run very well","Didnt work","the Engine Does Not Work",{"topic":644,"percentOfMentions":699,"verbatims":700},0.0623,[701,702,703],"N scale is small","smaller than it looks on Amazon","The track was pretty small",{"topic":705,"percentOfMentions":706,"verbatims":707},"Connectivity-Overall",0.0548,[708,709,710],"The cars would not stay connected","The plugs for this product are not easy connect\u002Fdisconnect","Just sometimes the cars are a little tricky to connect",{"topic":637,"percentOfMentions":712,"verbatims":713},0.0535,[714,715,716],"There is no ease of assembly","I can barely put it together","Hard to set up",{"topic":718,"percentOfMentions":435,"verbatims":719},"Charging",[720,721],"Battery no longer charging after 3 charges","The item would not close after inserting the battery",{"topic":723,"percentOfMentions":724,"verbatims":725},"Battery Life",0.0395,[726,727,728],"Batteries die","Changed battery a few times","Charge the battery and its still didnt work",{"topic":730,"percentOfMentions":724,"verbatims":731},"Defective Material\u002FParts",[732,733],"Defective","Nice DMV, accessories disappointing",{"topic":735,"percentOfMentions":724,"verbatims":736},"Wheel Quality",[737,738],"The train's wheels fall of easily when manually playing with it","Some wheels fell off one of the rail cars quickly",[740,742,744,746,748,750,752,754,755,758],{"reason":644,"pct":741},0.24350000000000002,{"reason":730,"pct":743},0.1553,{"reason":692,"pct":745},0.1461,{"reason":651,"pct":747},0.053,{"reason":705,"pct":749},0.051399999999999994,{"reason":609,"pct":751},0.042699999999999995,{"reason":637,"pct":753},0.0308,{"reason":735,"pct":753},{"reason":756,"pct":757},"Compatibility-Overall",0.0276,{"reason":759,"pct":760},"Degree Of 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Care","beauty-personal-care","\u002Fresearch\u002Fus\u002Fbeauty-personal-care",10978,8129370268,{"nodeId":857,"label":858,"slug":859,"href":860,"nichesTracked":861,"marketSizeTotal":862},"493964","Electronics","electronics","\u002Fresearch\u002Fus\u002Felectronics",8348,8093575873,{"nodeId":864,"label":865,"slug":866,"href":867,"nichesTracked":868,"marketSizeTotal":869},"1063498","Home & Kitchen","home-kitchen","\u002Fresearch\u002Fus\u002Fhome-kitchen",11250,6171847188,{"nodeId":871,"label":872,"slug":873,"href":874,"nichesTracked":875,"marketSizeTotal":876},"468240","Tools & Home Improvement","tools-home-improvement","\u002Fresearch\u002Fus\u002Ftools-home-improvement",9536,5679978000,{"nodeId":878,"label":879,"slug":880,"href":881,"nichesTracked":882,"marketSizeTotal":883},"3238155011","Patio, Lawn & Garden","patio-lawn-garden","\u002Fresearch\u002Fus\u002Fpatio-lawn-garden",8839,4979879539,{"nodeId":885,"label":886,"slug":887,"href":888,"nichesTracked":889,"marketSizeTotal":890},"7141124011","Clothing, Shoes & Jewelry","clothing-shoes-jewelry","\u002Fresearch\u002Fus\u002Fclothing-shoes-jewelry",16932,4054319330,{"nodeId":892,"label":893,"slug":894,"href":895,"nichesTracked":896,"marketSizeTotal":897},"3375301","Sports & Outdoors","sports-outdoors","\u002Fresearch\u002Fus\u002Fsports-outdoors",8101,3930668084,{"nodeId":899,"label":900,"slug":901,"href":902,"nichesTracked":903,"marketSizeTotal":904},"2619534011","Pet Supplies","pet-supplies","\u002Fresearch\u002Fus\u002Fpet-supplies",3979,3202071599,{"nodeId":906,"label":907,"slug":908,"href":909,"nichesTracked":910,"marketSizeTotal":911},"15690151","Automotive","automotive","\u002Fresearch\u002Fus\u002Fautomotive",7287,2959139927,{"nodeId":913,"label":914,"slug":915,"href":916,"nichesTracked":917,"marketSizeTotal":918},"165797011","Baby Products","baby-products","\u002Fresearch\u002Fus\u002Fbaby-products",2473,1858793879,{"nodeId":920,"label":921,"slug":922,"href":923,"nichesTracked":924,"marketSizeTotal":925},"2335753011","Cell Phones & Accessories","cell-phones-accessories","\u002Fresearch\u002Fus\u002Fcell-phones-accessories",2222,1674713279,{"nodeId":927,"label":928,"slug":929,"href":930,"nichesTracked":931,"marketSizeTotal":932},"165795011","Toys & Games","toys-games","\u002Fresearch\u002Fus\u002Ftoys-games",3143,1662205212,{"nodeId":10,"label":11,"slug":12,"href":13,"nichesTracked":934,"marketSizeTotal":935},4656,1471576936,{"nodeId":937,"label":938,"slug":939,"href":940,"nichesTracked":941,"marketSizeTotal":942},"2619526011","Appliances","appliances","\u002Fresearch\u002Fus\u002Fappliances",845,527166679,{"nodeId":944,"label":945,"slug":946,"href":947,"nichesTracked":948,"marketSizeTotal":949},"11965861","Musical Instruments","musical-instruments","\u002Fresearch\u002Fus\u002Fmusical-instruments",437,265480238,{"nodeId":951,"label":952,"slug":953,"href":954,"nichesTracked":955,"marketSizeTotal":956},"16310161","Industrial & Scientific","industrial-scientific","\u002Fresearch\u002Fus\u002Findustrial-scientific",262,260043081,{"nodeId":958,"label":959,"slug":960,"href":961,"nichesTracked":962,"marketSizeTotal":963},"1084128","Office Products","office-products","\u002Fresearch\u002Fus\u002Foffice-products",426,134456572,{"nodeId":965,"label":966,"slug":967,"href":968,"nichesTracked":969,"marketSizeTotal":970},"10304191","Other","other","\u002Fresearch\u002Fus\u002Fother",8,1511091,{"nodeId":972,"label":973,"slug":974,"href":975,"nichesTracked":31,"marketSizeTotal":976},"18981046011","Amazon Luxury","amazon-luxury","\u002Fresearch\u002Fus\u002Famazon-luxury",78675]