Which free app has the most Negative comments?
paid app refers to Type = 'Paid'; negative comment refers to Sentiment = 'Negative'; paid app with most negative comments refers to MAX(COUNT(Sentiment = 'Negative')) where Type = 'Paid';
SELECT T1.App FROM playstore AS T1 INNER JOIN user_reviews AS T2 ON T1.App = T2.App WHERE T1.Type = 'Free' AND T2.Sentiment = 'Negative' GROUP BY T1.App ORDER BY COUNT(T2.Sentiment) DESC LIMIT 1
CREATE TABLE IF NOT EXISTS "playstore"
(
    App              TEXT,
    Category         TEXT,
    Rating           REAL,
    Reviews          INTEGER,
    Size             TEXT,
    Installs         TEXT,
    Type             TEXT,
    Price            TEXT,
    "Content Rating" TEXT,
    Genres           TEXT
);
CREATE TABLE IF NOT EXISTS "user_reviews"
(
    App                    TEXT
        references "playstore" (App),
    Translated_Review      TEXT,
    Sentiment              TEXT,
    Sentiment_Polarity     TEXT,
    Sentiment_Subjectivity TEXT
);
