Instructions: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Input: Passage: Karl Holl studied philosophy and theology at the Tübinger Stift. He became a member of the Studentenverbindung (student association) Normannia. While serving as a minister in Württemberg, he completed his doctorate and became the lead tutor (Repetent) at the Tübinger Stift in 1891. From 1894 he was active as a research assistant at the Prussian Academy of Sciences at the instigation of Adolf von Harnack. He completed his Habilitation in 1896 at the theological faculty of Berlin. In 1901 he became associate professor (Extraordinarius) of church history at the University of Tübingen, from 1906 he was Professor (Ordinarius) at the University of Berlin. On December 17, 1914 he was admitted as a full member of the Prussian Academy of Sciences. He also served from 1912 to 1926 as “Ephorus” of the Evangelical Theological Seminary, the Stiftung Johanneum, in Berlin. His grave is located at the church cemetery in Stahnsdorf.
 Link Information: none Question: In what city did Karl Holl study philosophy and theology?
Output:
Answer: none