Searching within a pandas DataFrame

You have a part of the Penguins dataset:

weighted_penguins.head()

Output:

+----+-----------+-----------+---------------+
|    | species   | island    |   body_mass_g |
|----+-----------+-----------+---------------|
|  0 | Adelie    | Torgersen |        4250.0 |
|  1 | Gentoo    | Biscoe    |        5200.0 |
|  2 | Chinstrap | Dream     |        4400.0 |
|  3 | Gentoo    | Biscoe    |        4550.0 |
|  4 | Chinstrap | Dream     |        3700.0 |
+----+-----------+-----------+---------------+

Replace the values in the dataset with thin penguin if a penguin weighs less than 3300 grams and with plump penguin if a penguin is heavier than 4000 grams. Store the result in weighted_penguins. Do not print the weighted_penguins dataframe.
Tip: You can do it by applying the .where() method twice, one after another.