You will be given a definition of a task first, then some input of the task.
In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

It is connected to the inferior vena cava by Cantlie's line and positioned at the bottom right side of the falciform ligament. Located on its walls are tubular structures called the ducts of Luschka, which drain into it, until it eventually contracts and empties upon the release of the hormone CCK by the duodenum. A common disorder that affects this organ is cholelithiasis [KO-lay-lith-EYE-uh-suss], which occurs when salts or cholesterols build up into crystalline deposits. FTP, name this small organ that is located next to the liver and has the primary function of storing bile.
Output:
Science