CREATE TABLE table_name_70 (swing_to_gain NUMBER, winning_party_2007 VARCHAR2, rank VARCHAR2)

What's the sum of swing to gain with a winning party 2007 of Conservative with a rank smaller than 5?
SELECT SUM(swing_to_gain) FROM table_name_70 WHERE winning_party_2007 = "conservative" AND rank < 5
SELECT SUM("swing_to_gain") FROM "table_name_70" WHERE "conservative" = "winning_party_2007" AND "rank" < 5