What party is incumbent Oliver H. Cross?
CREATE TABLE table_18661 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" real,
    "Result" text,
    "Candidates" text
)
SELECT "Party" FROM table_18661 WHERE "Incumbent" = 'Oliver H. Cross'
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 party is incumbent Oliver H. Cross? ### Input: CREATE TABLE table_18661 (
    "District" text,
    "Incumbent" text,
    "Party" text,
    "First elected" real,
    "Result" text,
    "Candidates" text
) ### Response: SELECT "Party" FROM table_18661 WHERE "Incumbent" = 'Oliver H. Cross'