----------------------------------------
Start:
field1: valueA
some
lines
here
field3: valueC
..............
Finish:
field1: valueA
field2: valueB
field3: valueC
...............
Time:   6.89029693603516e-05
----------------------------------------
Start:
field1: valueA
field2: valueB
field3: valueC
...............
Finish:
field1: valueA
field2: valueB
field3: valueC
...............
Time:   1.62124633789062e-05