CREATE TABLE "tallest_buildings" (
  "rank" real,
  "name" text,
  "stories" real,
  "height" text,
  "year_completed" text,
  "primary_purpose" text,
  "city" text
);

Question: What is the total stories that rank number 10?
SQL: SELECT COUNT("stories") FROM "tallest_buildings" WHERE "rank"=10;

Question: What is the height of the EMC Insurance Building in Des Moines?
SQL: SELECT "height" FROM "tallest_buildings" WHERE "city"='des moines' AND "name"='emc insurance building';