CREATE TABLE table_name_51 (year NUMBER, nominated_work VARCHAR2, category VARCHAR2)

What is the total number of years in which Eiza Gonz lez had a nominated work in the category of solista favorito?
SELECT SUM(year) FROM table_name_51 WHERE nominated_work = "eiza gonzález" AND category = "solista favorito"
SELECT SUM("year") FROM "table_name_51" WHERE "category" = "solista favorito" AND "eiza gonzález" = "nominated_work"