In this task, you're given passages that contain mentions of a time duration related quesry and we are supposed to write answer to a question that involves event “frequency", which refers to how often an event is likely to be repeated. For example, "taking showers" typically occurs ~5 times a week, "going to saturday market" usually happens every few weeks/months, etc. 
 Note that a lot of the questions could have more than one correct answers. We only need a single most-likely answer. Please try to keep your "answer" as simple as possible. Concise and simple "answer" is preferred over those complex and verbose ones.  

Ex Input:
Sentence: As of 2013, West has won a total of 21 Grammy Awards, making him one of the most awarded artists of all-time. About.com ranked Kanye West No. 8 on their "Top 50 Hip-Hop Producers" list. On May 16, 2008, Kanye West was crowned by MTV as the year's No. 1 "Hottest MC in the Game." On December 17, 2010, Kanye West was voted as the MTV Man of the Year by MTV. Billboard ranked Kanye West No. 3 on their list of Top 10 Producers of the Decade. West ties with Bob Dylan for having topped the annual Pazz & Jop critic poll the most number of times ever, with four number-one albums each. West has also been included twice in the Time 100 annual lists of the most influential people in the world as well as being listed in a number of Forbes annual lists. 
Question: How many times has Kanye placed in the annual Time Magazine people list?

Ex Output:
twice


Ex Input:
Sentence: During the Cold War between the Soviet Union and the United States, huge stockpiles of uranium were amassed and tens of thousands of nuclear weapons were created using enriched uranium and plutonium made from uranium. Since the break-up of the Soviet Union in 1991, an estimated 600 short tons (540 metric tons) of highly enriched weapons grade uranium (enough to make 40,000 nuclear warheads) have been stored in often inadequately guarded facilities in the Russian Federation and several other former Soviet states. Police in Asia, Europe, and South America on at least 16 occasions from 1993 to 2005 have intercepted shipments of smuggled bomb-grade uranium or plutonium, most of which was from ex-Soviet sources. From 1993 to 2005 the Material Protection, Control, and Accounting Program, operated by the federal government of the United States, spent approximately US $550 million to help safeguard uranium and plutonium stockpiles in Russia. This money was used for improvements and security enhancements at research and storage facilities. Scientific American reported in February 2006 that in some of the facilities security consisted of chain link fences which were in severe states of disrepair. According to an interview from the article, one facility had been storing samples of enriched (weapons grade) uranium in a broom closet before the improvement project; another had been keeping track of its stock of nuclear warheads using index cards kept in a shoe box. 
Question: Approximately how many times did police capture shipments of bomb-grade plutonium or uranium between 1993 and 2005?

Ex Output:
16


Ex Input:
Sentence: The Northwestern Interdisciplinary Law Review is a scholarly legal publication published annually by an editorial board of Northwestern University undergraduates. The journal's mission is to publish interdisciplinary legal research, drawing from fields such as history, literature, economics, philosophy, and art. Founded in 2008, the journal features articles by professors, law students, practitioners, and undergraduates. The journal is funded by the Buffett Center for International and Comparative Studies and the Office of the Provost. 
Question: How often is The Northwestern Interdisciplinary Law Review published?

Ex Output:

annually