Literal question
<svar a="all" v="PA00A047">6. What is the predominant material in the outside walls of the building or house?<br /><div class="i1">[] 1 Cement block, brick, stone, concrete<br />[] 2 Wood (planks, boards)<br />[] 3 Clay-covered plant fiber (<span class="lang">quincha</span>), adobe<br />[] 4 Metal (zinc, aluminum, etc.)<br />[] 5 Straw, palm leaves, cane, sticks<br />[] 6 Other materials<br />[] 7 Without walls</div><br /></svar>