What is the sum of rank when silver is 1, and gold is less than 7, and bronze is 2?
CREATE TABLE table_7031 (
    "Rank" real,
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
)
SELECT SUM("Rank") FROM table_7031 WHERE "Silver" = '1' AND "Gold" < '7' AND "Bronze" = '2'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the sum of rank when silver is 1, and gold is less than 7, and bronze is 2? ### Input: CREATE TABLE table_7031 (
    "Rank" real,
    "Nation" text,
    "Gold" real,
    "Silver" real,
    "Bronze" real,
    "Total" real
) ### Response: SELECT SUM("Rank") FROM table_7031 WHERE "Silver" = '1' AND "Gold" < '7' AND "Bronze" = '2'