CREATE TABLE table_50512 ("Rank" FLOAT, "Name" TEXT, "Team ( s ) " TEXT, "Birth date" TEXT, "Death date" TEXT, "Age  ( as of 1 February 2014 ) " TEXT, "Nationality" TEXT)

What was the date of death for a rank below 14 and age of 103 years, 148 days?
SELECT "Death date" FROM table_50512 WHERE "Rank" < '14' AND "Age (as of 1 February 2014)" = '103 years, 148 days'
SELECT "Death date" FROM "table_50512" WHERE "Age (as of 1 February 2014)" = '103 years, 148 days' AND "Rank" < '14'