What are the top three most frequently reviewed grape varieties in the dataset?

What are the top three most frequently reviewed grape varieties in the dataset?: a task in SmolDataEnvs-harbor-train-sandbox: 📊 SmolDataEnvs: Harbor (train) (Harbor dataset). Files (in /home/user/input, no subfolders): - winemag-data first150k.csv - winemag-data-130k-v2.csv