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'.

Passage: Alfred Stillé (October 30, 1813 – September 24, 1900) was an American physician. Born in Philadelphia, he studied classics at Yale, but was expelled for participating in the Conic Sections Rebellion. He then transferred to the University of Pennsylvania in the same year, where he received an A.B. degree in 1832. He went on to get an A.M. from the University of Pennsylvania in 1835 and in 1836 an M.D. from the school's department of medicine. He settled to practice in his native city, but spent parts of 1841 and 1851 in Paris and Vienna. From 1854 to 1859 he was professor of medicine at the Pennsylvania Medical College and from 1864 to 1884 at the University of Pennsylvania, later becoming its Chair. Stillé was one of the first in America to distinguish between typhus and typhoid fever. His observations in this connection he made during a typhus epidemic in Philadelphia in 1836 and reported in 1838. He acquired a great reputation as a practitioner, teacher, and writer, and was the first secretary, and in 1871–72 the president, of the American Medical Association. However, as evidenced by his later writings, he was also known for refusing to accept the germ theory or laboratory medicine.
 Link Information: He then transferred to the Question: Of the two universities Alfred attended, which one admits more international students?
Answer: University of Pennsylvania

Passage: The word Punjabi (sometimes spelled Panjabi) has been derived from the word Panj-āb, Persian for "Five Waters", referring to the five major eastern tributaries of the Indus River. The name of the region was introduced by the Turko-Persian conquerors of South Asia and was a translation of the Sanskrit name for the region, Panchanada, which means "Land of the Five Rivers". Panj is cognate with Sanskrit () and Greek (pénte) and Lithuanian Penki - "five", and "āb" is cognate with Sanskrit (áp) and with the of . The historical Punjab region, now divided between India and Pakistan, is defined physiographically by the Indus River and these five tributaries. One of the five, the Beas River, is a tributary of another, the Sutlej.
 Link Information: The word Punjab means "land of five rivers" and the five rivers are Jhelum, Chenab, Ravi, Beas and Sutlej, Question: What are the names of the five major eastern tributaries of the Indus River?
Answer: Jhelum, Chenab, Ravi, Beas and Sutlej,

Passage: Taube was born in New York City in 1939 to Count Arvid E. Taube and Alice N. Taube. After attending Kent School, he enrolled at Princeton University, from which he graduated in 1961 with a B.A. in sociology. He went on to receive a doctorate in sociology from American University in 1983. He began working at the National Institute of Mental Health in 1961 as a statistician, and continued to work there until 1987, eventually becoming director of their Division of Biometry and Applied Sciences. He also began a mental health economics program at the NIMH and started their "Mental Health, United States" series, a regularly published report cataloging mental health statistics in the United States. In 1980, he was awarded the Administrators Award for Meritorious Achievement from the Alcohol Drug Abuse and Mental Health Agency. In 1987, he became a professor in the Department of Mental Hygiene at the Johns Hopkins School of Hygiene and Public Health, where he continued to teach until his death. On September 28, 1989, he died of congestive heart failure at the Johns Hopkins Hospital in Baltimore, Maryland. In 1990, the American Public Health Association established the Carl Taube Award for Lifetime Contribution to the Field of Mental Health in honor of his work.
 Link Information: with an estimated 19,979,477 people in its 2018 Metropolitan Statistical Area and 22,679,948 residents in its Combined Statistical Area Question: How many people live in the city that Taube was born?

Answer: 19,979,477