CREATE TABLE table_name_6 (assists INT, name VARCHAR, venue VARCHAR, competition VARCHAR)

What is the sum of the assists kang jae-soon had in the k-league competition in ulsan?
SELECT SUM(assists) FROM table_name_6 WHERE venue = "ulsan" AND competition = "k-league" AND name = "kang jae-soon"
SELECT SUM("assists") FROM "table_name_6" WHERE "competition" = "k-league" AND "kang jae-soon" = "name" AND "ulsan" = "venue"