Line format:(no label) vertex-ID \t number-of-neighbors neighbor1-ID neighbor2-ID •••
Line format:(with label) vertex-ID label \t neighbor1-ID label neighbor2-ID label •••
hadoop fs -mkdir /toyFolder
hadoop fs -put { your_local_directory_for_toy.txt }/toy.txt /toyFolder
hadoop fs -put { your_local_directory_for_label_toy.txt }/label_toy.txt /toyFolder
hadoop fs -cat /toyOutput/*