040000 tree 105a87bbc81f0b815b708f788c8b5fb621f733ee	Features
040000 tree 9faac0b72ac197392293e0805f03ed46727eb00b	TrafficLight
040000 tree 32f596b490c6c2e2a96d9be5870fe8bc294f087f	TrafficLight_step1
040000 tree 0a4945910febc7cc28e195acc46979e8b4e9e820	TrafficLight_step2
040000 tree aaf38a95e2b3c3ddc3444350bd579ca8b9b73380	TrafficLight_step3
040000 tree 1604444bace11dc3d351ac7d2eadaac9b0a1c04d	TrafficLight_step4