Table: tallest_buildings_iowa
Columns: rank
name
stories
height
year_completed
primary_purpose
city

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

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