timestamp,case id,name,instance,status
2022/05/13 09:25:21,c1,a,1,start
2022/05/13 09:25:21,c1,a,1,
2022/05/13 09:30:01,c1,b,2,begin
2022/05/13 09:30:01,c1,b,,complete
2022/05/13 09:48:33,,,6,start
2022;05;13 09;48;33,c2,a,6,complete
2022/05/13 09:54:27,c2,c,7,start
,c2,c,7,complete