In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

[EX Q]: Who practices SODIS?, Context: Solar water disinfection (SODIS) involves exposing water-filled plastic polyethylene terephthalate (PET) bottles to sunlight for several hours. Exposure times vary depending on weather and climate from a minimum of six hours to two days during fully overcast conditions. It is recommended by the World Health Organization as a viable method for household water treatment and safe storage. Over two million people in developing countries use this method for their daily drinking water.
[EX A]: Over two million people

[EX Q]: How does Leibniz feel about the absolutist position?, Context: Arguing against the absolutist position, Leibniz offers a number of thought experiments with the purpose of showing that there is contradiction in assuming the existence of facts such as absolute location and velocity. These arguments trade heavily on two principles central to his philosophy: the principle of sufficient reason and the identity of indiscernibles. The principle of sufficient reason holds that for every fact, there is a reason that is sufficient to explain what and why it is the way it is and not otherwise. The identity of indiscernibles states that if there is no way of telling two entities apart, then they are one and the same thing.
[EX A]: there is contradiction

[EX Q]: How extreme was Luther's treatise Juden und ihren Lugen?, Context: In 1523, Luther wrote that Jesus Christ was born a Jew which discouraged mistreatment of the Jews and advocated their conversion by proving that the Old Testament could be shown to speak of Jesus Christ. However, as the Reformation continued, Luther began to lose hope in large-scale Jewish conversion to Christianity. In his later years, Luther grew more hostile toward the Jews, writing against them with the kind of venom he had already unleashed on the Anabaptists, Zwinglianism, and the papacy. His 1543 treatise Von den Juden und ihren Lugen (On the Jews and Their Lies) took its place among other anti-Jewish literature of the times, although historians acknowledge that this treatise was particularly extreme, even by the standards of sixteenth century Europe. In it, he takes a hardline against Judaism, writing that synagogues and Jewish homes should be destroyed, their money confiscated, and liberty curtailed. These statements and their influence on antisemitism have contributed to his controversial status.
[EX A]:
particularly extreme, even by the standards of sixteenth century Europe