phil mickelson 's score at the bob hope chrysler minus chris smith 's score at the buick classic .
CREATE TABLE table_203_531 (
    id number,
    "date" text,
    "tournament" text,
    "location" text,
    "winner" text,
    "score" text,
    "1st prize ($)" number
)
SELECT (SELECT "score" FROM table_203_531 WHERE "tournament" = 'bob hope chrysler classic') - (SELECT "score" FROM table_203_531 WHERE "tournament" = 'buick classic')
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: phil mickelson 's score at the bob hope chrysler minus chris smith 's score at the buick classic . ### Input: CREATE TABLE table_203_531 (
    id number,
    "date" text,
    "tournament" text,
    "location" text,
    "winner" text,
    "score" text,
    "1st prize ($)" number
) ### Response: SELECT (SELECT "score" FROM table_203_531 WHERE "tournament" = 'bob hope chrysler classic') - (SELECT "score" FROM table_203_531 WHERE "tournament" = 'buick classic')