[section-1]
option-1 = value-1
option-2 = value-2
option-3 = value-3
option-a = value-a

[section-2]
option-1 = value-1

[section-3]
option-1 = value-1
option-4 = value-4
option-6 = value-6

[section-4]
option-8 = value-8
option-9 = value-9