What is Ips-provectus transmittance/contrast ratio?
CREATE TABLE table_66888 (
    "Name" text,
    "Nickname" text,
    "Year" real,
    "Advantage" text,
    "Transmittance/ contrast ratio" text
)
SELECT "Transmittance/ contrast ratio" FROM table_66888 WHERE "Name" = 'ips-provectus'
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 Ips-provectus transmittance/contrast ratio? ### Input: CREATE TABLE table_66888 (
    "Name" text,
    "Nickname" text,
    "Year" real,
    "Advantage" text,
    "Transmittance/ contrast ratio" text
) ### Response: SELECT "Transmittance/ contrast ratio" FROM table_66888 WHERE "Name" = 'ips-provectus'