You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Eton_College

Context:
Societies tend to come and go, of course, depending on the special enthusiasms of the masters and boys in the school at the time, but some have been in existence many years. Those in existence at present include: Aeronautical, African, Alexander Cozens (Art), Amnesty, Archeological, Architectural, Astronomy, Banks (conservation), Caledonian, Cheese, Classical, Comedy, Cosmopolitan, Debating, Design, Entrepreneurship, Geographical, Henry Fielding, Hispanic, History, Keynes (economics), Law, Literary, Mathematical, Medical, Middle Eastern, Model United Nations, Modern Languages, Oriental, Orwell (left-wing), Simeon (Christian), Parry (music), Photographic, Political, Praed (poetry), Rock (music), Rous (equestrian), Salisbury (diplomatic), Savile (Rare Books and Manuscripts), Shelley, Scientific, Sports, Tech Club, Theatre, Wellington (military), Wine and Wotton’s (philosophy).

Question:
Which Eton society is centered around horses?

Rous