what is the elevation of south america? 
CREATE TABLE table_27435931_1 (elevation_ft VARCHAR, continent VARCHAR)
SELECT elevation_ft FROM table_27435931_1 WHERE continent = "South America"
### Context: CREATE TABLE table_27435931_1 (elevation_ft VARCHAR, continent VARCHAR) ### Question: what is the elevation of south america?  ### Answer: SELECT elevation_ft FROM table_27435931_1 WHERE continent = "South America"