Create root node with child&grandchild nodes

$ ./novacoind listroot
[
    "4UyfQLhvfTuyLzva9SDLj7WcTgnStM7G4D"
]
$ ./novacoind createroot
4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5
$ ./novacoind listroot
[
    "4UyfQLhvfTuyLzva9SDLj7WcTgnStM7G4D",
    "4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5"
]
$ ./novacoind validateaddress 4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5
{
    "isvalid" : true,
    "address" : "4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5",
    "ismine" : true,
    "isscript" : false,
    "pubkey" : "039c4d8ac396af6fe8daa3155055a10bfb9baeeac3f2f9654e57da1053d587f91f",
    "iscompressed" : true,
    "nodemeta" : {
        "parent" : null,
        "depth" : 0,
        "sequence" : 0,
        "code" : "4e2431bb11d5593f68a9fd2c095f855ddc44c1514b0b682a49ef83a8cab015a5",
        "method" : 0,
        "generator" : "random"
    }
}
$ ./novacoind getchildof 4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5 true
4TSM2sFLU21YWU5YNbU7mqUp4s5RK2g5q1
$ ./novacoind getchildof 4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5 true
4VSkPavSzBJZbssqmWNrR8ZJnXHeDEhdLn
$ ./novacoind getchildof 4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5 true
4XjkyG9jN4DK53FWtqGeT1SeGL9st1NbqR
$ ./novacoind listchild 4QhwzYyPtKg7WGNXaJDojKEnHaGJKTf4S5
[
    "4TSM2sFLU21YWU5YNbU7mqUp4s5RK2g5q1",
    "4VSkPavSzBJZbssqmWNrR8ZJnXHeDEhdLn",
    "4XjkyG9jN4DK53FWtqGeT1SeGL9st1NbqR"
]
$ ./novacoind getchildof 4TSM2sFLU21YWU5YNbU7mqUp4s5RK2g5q1
4RFKC1xBkQxtLGZi5VTe8PEcLBeME35oJn
$ ./novacoind getchildof 4VSkPavSzBJZbssqmWNrR8ZJnXHeDEhdLn
4Q5h3QMXGTjWbWAWAtdu9tS6e4mTa5nPVp
$ ./novacoind getchildof 4XjkyG9jN4DK53FWtqGeT1SeGL9st1NbqR
4E7U61aMmfQcXUni8Cz4rVwJEQPm6e6SUq
$ ./novacoind listchild 4TSM2sFLU21YWU5YNbU7mqUp4s5RK2g5q1
[
    "4RFKC1xBkQxtLGZi5VTe8PEcLBeME35oJn"
]
$ ./novacoind listchild 4XjkyG9jN4DK53FWtqGeT1SeGL9st1NbqR
[
    "4E7U61aMmfQcXUni8Cz4rVwJEQPm6e6SUq"
]
$ ./novacoind listchild 4VSkPavSzBJZbssqmWNrR8ZJnXHeDEhdLn
[
    "4Q5h3QMXGTjWbWAWAtdu9tS6e4mTa5nPVp"
]
$