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.

Example Input: One of his books analyzed such documents as a picture of a woman lying on the floor with bent legs in front of a bemused man in a three-piece suit, which this author argued communicated a message even though the text was too blurry to read. In addition to writing Gender Advertisements, he described the procedures for boarding a bus or navigating a crowded elevator in his (*) Interaction Ritual. His major work draws on a theory first developed by George Herbert Mead, symbolic interactionism, to explain the "dramaturgical approach" to ordinary behavior. For 10 points, name this Canadian sociologist who wrote The Presentation of Self in Everyday Life.
Example Output: Social Science

Example Input: A maximum independent set for this data structure can be found in linear time by adding alternating levels. In this structure, any two vertices or nodes must be connected by a single simple path, and thus it is connected and acyclic. By using (*) union-find with disjoint sets, one type of this structure containing all the vertices of a connected graph can be constructed. One variety of this data structure can be used to easily implement a binary search. This structure also comes in red-black and self-balancing-binary varieties. For 10 points, identify this data structure from computer science, a hierarchical graph in which "leaf" nodes ultimately flow from a "root" node.
Example Output: Science

Example Input: It is one of the few groups that favor substitution on a cyclohexane ring in an axial position, due to steric considerations. When heated, they undergo the Curtius rearrangement and become isocyanate groups, which in the presence of water is converted to an amine group. Often used in explosive triggers due to their sensitivity, they behave much like halogens, since their instability makes their displacement easy. FTP, identify this chemical group, consisting of a chain of 3 nitrogen atoms.
Example Output:
Science