Name the points classification for levi leipheimer
CREATE TABLE table_30923 (
    "Stage" real,
    "Winner" text,
    "General classification" text,
    "Mountains Classification" text,
    "Points classification" text,
    "Sprints Classification" text,
    "Team Classification" text
)
SELECT "Points classification" FROM table_30923 WHERE "General classification" = 'Levi Leipheimer'
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: Name the points classification for levi leipheimer ### Input: CREATE TABLE table_30923 (
    "Stage" real,
    "Winner" text,
    "General classification" text,
    "Mountains Classification" text,
    "Points classification" text,
    "Sprints Classification" text,
    "Team Classification" text
) ### Response: SELECT "Points classification" FROM table_30923 WHERE "General classification" = 'Levi Leipheimer'