CREATE TABLE table_16802 ("House Name" CLOB, "Composition" CLOB, "Named after" CLOB, "Founded" FLOAT, "Colours" CLOB)

What is the green house made of?
SELECT "Composition" FROM table_16802 WHERE "Colours" = 'Green'
SELECT "Composition" FROM "table_16802" WHERE "Colours" = 'Green'