CREATE TABLE table_29517 ("Year" CLOB, "Summits" CLOB, "Country" CLOB, "Continent" CLOB, "Elevation ft" FLOAT, "Elevation m" FLOAT)

what is the elevation of south america?
SELECT "Elevation ft" FROM table_29517 WHERE "Continent" = 'South America'
SELECT "Elevation ft" FROM "table_29517" WHERE "Continent" = 'South America'