CREATE TABLE table_name_89 (number NUMBER, opponent VARCHAR2, time VARCHAR2)

What number with the opponent Fokker D.vii have with a time of 1655?
SELECT SUM(number) FROM table_name_89 WHERE opponent = "fokker d.vii" AND time = 1655
SELECT SUM("number") FROM "table_name_89" WHERE "fokker d.vii" = "opponent" AND "time" = 1655