What was the lead margin when Schweitzer had 55% and Jones had 2%?
CREATE TABLE table_47384 (
    "Poll Source" text,
    "Dates administered" text,
    "Democrat: Brian Schweitzer" text,
    "Republican: Roy Brown" text,
    "Libertarian: Stan Jones" text,
    "Lead Margin" real
)
SELECT SUM("Lead Margin") FROM table_47384 WHERE "Democrat: Brian Schweitzer" = '55%' AND "Libertarian: Stan Jones" = '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 was the lead margin when Schweitzer had 55% and Jones had 2%? ### Input: CREATE TABLE table_47384 (
    "Poll Source" text,
    "Dates administered" text,
    "Democrat: Brian Schweitzer" text,
    "Republican: Roy Brown" text,
    "Libertarian: Stan Jones" text,
    "Lead Margin" real
) ### Response: SELECT SUM("Lead Margin") FROM table_47384 WHERE "Democrat: Brian Schweitzer" = '55%' AND "Libertarian: Stan Jones" = '2%'