input question: Extract the answer to the question from the following context. Question: Which of the following is not a school of Buddhism: Karma Kagyu, Van Praag, or Sakya? Context: The Ming court appointed three Princes of Dharma () and five Princes (), and granted many other titles, such as Grand State Tutors () and State Tutors (), to the important schools of Tibetan Buddhism, including the Karma Kagyu, Sakya, and Gelug. According to Wang Jiawei and Nyima Gyaincain, leading officials of these organs were all appointed by the central government and were subject to the rule of law. Yet Van Praag describes the distinct and long-lasting Tibetan law code established by the Phagmodru ruler Tai Situ Changchub Gyaltsen as one of many reforms to revive old Imperial Tibetan traditions.???
output answer: Van Praag

input question: Extract the answer to the question from the following context. Question: What has two different values? Context: QED vacuum has interesting and complex properties. In QED vacuum, the electric and magnetic fields have zero average values, but their variances are not zero. As a result, QED vacuum contains vacuum fluctuations (virtual particles that hop into and out of existence), and a finite energy called vacuum energy. Vacuum fluctuations are an essential and ubiquitous part of quantum field theory. Some experimentally verified effects of vacuum fluctuations include spontaneous emission and the Lamb shift. Coulomb's law and the electric potential in vacuum near an electric charge are modified.???
output answer: electric and magnetic fields

input question: Extract the answer to the question from the following context. Question: Where can you find a Melbourne university? Context: Melbourne universities have campuses all over Australia and some internationally. Swinburne University has campuses in Malaysia, while Monash has a research centre based in Prato, Italy. The University of Melbourne, the second oldest university in Australia, was ranked first among Australian universities in the 2010 THES international rankings. The 20122013 Times Higher Education Supplement ranked the University of Melbourne as the 28th (30th by QS ranking) best university in the world. Monash University was ranked as the 99th (60th by QS ranking) best university in the world. Both universities are members of the Group of Eight, a coalition of leading Australian tertiary institutions offering comprehensive and leading education.???
output answer: all over Australia and some internationally

input question: Extract the answer to the question from the following context. Question: How frequently must the ECB address various European institutions? Context: The independence of the ECB is instrumental in maintaining price stability. Not only must the bank not seek influence, but EU institutions and national governments are bound by the treaties to respect the ECB's independence. To offer some accountability, the ECB is bound to publish reports on its activities and has to address its annual report to the European Parliament, the European Commission, the Council of the European Union and the European Council. The European Parliament also gets to question and then issue its opinion on candidates to the executive board.???
output answer:
annual