Show the names of people who have been on the negative side of debates at least twice.
CREATE TABLE people (
    people_id number,
    district text,
    name text,
    party text,
    age number
)

CREATE TABLE debate_people (
    debate_id number,
    affirmative number,
    negative number,
    if_affirmative_win others
)

CREATE TABLE debate (
    debate_id number,
    date text,
    venue text,
    num_of_audience number
)
SELECT T2.name FROM debate_people AS T1 JOIN people AS T2 ON T1.negative = T2.people_id GROUP BY T2.name HAVING COUNT(*) >= 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: Show the names of people who have been on the negative side of debates at least twice. ### Input: CREATE TABLE people (
    people_id number,
    district text,
    name text,
    party text,
    age number
)

CREATE TABLE debate_people (
    debate_id number,
    affirmative number,
    negative number,
    if_affirmative_win others
)

CREATE TABLE debate (
    debate_id number,
    date text,
    venue text,
    num_of_audience number
) ### Response: SELECT T2.name FROM debate_people AS T1 JOIN people AS T2 ON T1.negative = T2.people_id GROUP BY T2.name HAVING COUNT(*) >= 2