10,20,2003-04-21,mysql
20,\N,2003-04-22,MySQL
30,40,2003-04-23,MySQL is Open Source Database
40,50,monty,30
50,60,2003-04-24
60,67 abc,2003-04-25,mysql
70,80,2003-04-26,mysql,open,source
500,90,2003-04-27,mysql