If the dwelling has electricity from the Corporación Dominicana de Electricidad (CDE) [Dominican Electric Corporation] circle 1 is filled in.

[p. 35]

If the electricity for the dwelling's lighting comes from a system that is not from the CDE, circle 2, private system, is filled in.

When the dwelling has both of the previous possibilities, circle 3, CDE and private system, is filled in.

If the dwelling has its own generator, circle 4 is filled in.

If the dwelling has both a private generator and CDE electricity, circle 5 is filled in.

For a propane gas lamp, circle 6 is filled in.

For a kerosene gas lamp, circle 7 is filled in.

[The text does not list instructions for circle 8 but the graphics suggest it is for a candle]

Circle 9, "others", is filled in for the other cases.