Question: How many students are at the largest university in Switzerland at which Philip Kraft has lectured?

Context paragraphs:
Penn State University Creamery: The Pennsylvania State University Creamery, often shortened to just Berkey Creamery or The Creamery, is a producer and vendor of ice cream, sherbet, and cheese, all made through the Department of Food Science in the College of Agricultural Sciences of the Pennsylvania State University.  It is the largest university creamery in the United States, using approximately 4.5 million pounds of milk annually, approximately half of which comes from a 225-cow herd at the University's Dairy Production Research Center and the rest from an independent milk producer, and selling 750,000 hand-dipped ice cream cones per year.  Offering over 100 ice cream flavors made with a butterfat content of 14.1% and ingredients from around the country and the world, the Creamery's ice cream is enjoyed by many students and alumni every day.

WVUR-FM: WVUR-FM, The Source 95 is the student-run college radio station of Valparaiso University in Valparaiso, Indiana.  It broadcasts at 95.1 MHz FM and streams online at WVUR's website.  The station features a range of students, staff, members of the public, and faculty members who contribute to the station.  Each semester some students participate with the Source on a regular basis, making it one of the largest organizations on campus.  The Source plays a wide variety of music including rock, alternative, jazz, punk, airhorn, and indie.  Many students have specialty shows in which they play their own mix in addition to the regular automated rotation.  WVUR Sports is an integral part of the station.  Hundreds of VU Athletics games are broadcast each year on the air and online.  The Evening Source also exists, providing the area with news at 5 PM.

Philip Kraft: Philip Kraft (born in Rendsburg on March 24, 1969) is a German fragrance chemist.  Since 1996 he has been employed by Givaudan, a leading Flavor and Fragrance company, where he designs captive odorants for use in perfumes.  He has lectured at the University of Bern, the University of Zurich, and the ETH Zurich.

Port Moody Secondary School: Port Moody Secondary School is a public coeducational high school located in Port Moody, British Columbia.  The school is notable for offering the International Baccalaureate Program and the Career Preparation Program to its students, which many students travel from other districts to participate in.  There are approximately 400 students in the pre-International Baccalaureate Diploma programme and the International Baccalaureate diploma programme tracks.  Port Moody Secondary is widely known in the area for sending an impressive number of students to the world's most selectivities universities.  In the past three years, students have matriculated to schools such as: Harvard University, Princeton University, University of Chicago, University of Pennsylvania, Cornell University, UC Berkeley and Dartmouth College.  Port Moody serves grades nine through twelve and currently has an enrollment of 1,312 students.  The school is respected for its academics, visual arts, musical arts and athletic programs.

University of Zurich: The University of Zurich (UZH, German: "Universität Zürich" ), located in the city of Zürich, is the largest university in Switzerland, with over 26,000 students.  It was founded in 1833 from the existing colleges of theology, law, medicine and a new faculty of philosophy.

KJSCE Symphony: Symphony, the annual cultural festival of K. J. Somaiya College of Engineering, has created its name and popularity among Engineering and Management institutes far and wide for the last decade.  Every year many students from various institutes be a part of this festival.  The main aim is to promote, encourage and exhibit the talents of the students on a common platform and create interest in the classical, vocal and instrumental music.  Symphony hosts more than 9000 students every year.  Symphony has been graced by artists of the magnitude of Pt.  Hariprasad Chaurasia, Pt ShivKumar Sharma, Louis Banks, Hariharan, Indus Creed, Parikrama, KK, Bombay Vikings, Taufiq Qureshi, Dagar, Suraj Jagan, and Ustad Zakir Hussain.  The event also has a social touch to propagate a message relevant to the times like AIDS awareness, etc.  There have also been Auto Shows and an Army display at Symphony.  The organization is done by students which is also a time for building strong camaraderie and teamwork.  Many students look back fondly at the memories gathered during this phase of their lives.

Donald B. Fullerton: Donald B. Fullerton (July 6, 1892 – April 9, 1985) was a Christian missionary and teacher who founded the Princeton Evangelical Fellowship and served with it from 1931 until 1980.  He was noted for convincing many students at Princeton University of the truth of the Christian faith.  Arthur Glasser also credited his conversion to Dr. Fullerton, through hearing him speak at the Keswick Bible Conference.  In addition to his evangelistic efforts, Dr. Fullerton was a major spiritual influence on many students including Paul Pressler, a major figure in the Conservative resurgence of the Southern Baptist Convention, and the noted Reformed theologian John Frame.  He was a member of the Princeton University Class of 1913 and received an honorary Doctorate of Ministry from Grace Theological Seminary.

BMVA Summer School: BMVA Summer School is an annual summer school on computer vision, organised by the British Machine Vision Association and Society for Pattern Recognition (BMVA).  The course is residential, usually held over five days, and consists of lectures and practicals in topics in image processing, computer vision, pattern recognition.  It is intended that the course will complement and extend the material in existing technical courses that many students/researchers will encounter in their early stage of postgraduate training or caeeers.  It aims to broaden awareness of knowledge and techniques in Vision, Image Computing and Pattern Recognition, and to develop appropriate research skills, and for students to interact with their peers, and to make contacts among those who will be the active researchers of their own generation.  It is open to students from both UK and non-UK universities.  The registration fees vary based on time of registration and are in general slightly higher for non-UK students.  The summer school has been hosted locally by various universities in UK that carry out Computer Vision research, e.g., Kingston University, the University of Manchester and Swansea University.

Pennsylvania Governor's School for the Sciences: The Pennsylvania Governor's School for the Sciences (PGSS) is one of the Pennsylvania Governor's Schools of Excellence, a group of five-week summer programs for gifted high school students in the state of Pennsylvania.  Carnegie Mellon University in Pittsburgh has hosted the program since its inception in 1982.  Most recently, it has been directed by Physics Professor Dr. Barry Luokkala.  Participants are required to be Pennsylvania high school students between their junior and senior years and are required to live in the dormitories for the full five weeks of the program.  Admission is very competitive - approximately 500 of the most scientifically gifted students in the state compete for 56 to 60 slots in the program.  The aim of PGSS is to promote interest in science rather than to advance students' knowledge in a specific area.  The curriculum includes five "core" courses in Biology, Chemistry, Computer Science, Mathematics and Physics, and numerous electives.  In addition to taking classes, students are required to participate in a lab course and a research-style team project.  The emphasis is on cooperation, rather than competition - students are encouraged to both collaborate with other students on academic work and to interact socially.  The Residence Life staff provides a number of structured social events to foster friendship and teamwork.  There is at least one event per day and is advertised on the social calendar in the dorm lobby.  For many students, the social development gained from the program rivals the scientific knowledge they acquire.  The students leave the program with a strong bond; most attend an organized reunion the following year after the 4th week of the program.

National High School Debate League of China: The National High School Debate League of China, or simply NHSDLC, is an English-language high school debate league serving Mainland China.  It uses the Public Forum debate format.  Each year, the NHSDLC sees around 50,000 students participate in its debate workshops and around 12,000 students participate in its regional or national tournaments that it hosts in more than 33 cities in China.  According to The Economist, many students believe participating will help their application to a Western university.  It was founded in 2012, and it hosted one of China's first ever English-language high school national debate tournaments for local students at Peking University in May 2013.  Each year, its national debate championship hosted in Beijing attracts 450 students from around China.  NHSDLC is partnered with Harvard College Mentors for Urban Debate, Penn for Youth Debate, the Chicago Debate Society, the Yale Debate Association, Sunrise International Education, and the Stanford Youth Debate Initiative.

Supporting paragraphs: Philip Kraft University of Zurich
Answer: over 26,000