{"_yql_column_0"="0233";"key"="023";"subkey"="3";"value"="aaa"};
{"_yql_column_0"="0375";"key"="037";"subkey"="5";"value"="ddd"};
{"_yql_column_0"="0751";"key"="075";"subkey"="1";"value"="abc"};
{"_yql_column_0"="1501";"key"="150";"subkey"="1";"value"="aaa"};