Input: Read this: During the 2009–10 school year, there were a total of 10,979 pupils attending classes in Bern. There were 89 kindergarten classes with a total of 1,641 pupils in the municipality. Of the kindergarten pupils, 32.4% were permanent or temporary residents of Switzerland (not citizens) and 40.2% have a different mother language than the classroom language. The municipality had 266 primary classes and 5,040 pupils. Of the primary pupils, 30.1% were permanent or temporary residents of Switzerland (not citizens) and 35.7% have a different mother language than the classroom language. During the same year, there were 151 lower secondary classes with a total of 2,581 pupils. There were 28.7% who were permanent or temporary residents of Switzerland (not citizens) and 32.7% have a different mother language than the classroom language.
Question: How many lower secondary classes were there?

Output: 151


Input: Read this: The vast majority of devices containing LEDs are "safe under all conditions of normal use", and so are classified as "Class 1 LED product"/"LED Klasse 1". At present, only a few LEDs—extremely bright LEDs that also have a tightly focused viewing angle of 8° or less—could, in theory, cause temporary blindness, and so are classified as "Class 2". The opinion of the French Agency for Food, Environmental and Occupational Health & Safety (ANSES) of 2010, on the health issues concerning LEDs, suggested banning public use of lamps which were in the moderate Risk Group 2, especially those with a high blue component in places frequented by children. In general, laser safety regulations—and the "Class 1", "Class 2", etc. system—also apply to LEDs.
Question: How are most non-LEDs classified?

Output: unanswerable


Input: Read this: On November 17, 2014, Students for Fair Admissions, an offshoot of the Project on Fair Representation, filed lawsuits in federal district court challenging the admissions practices of Harvard University and the University of North Carolina at Chapel Hill. The UNC-Chapel Hill lawsuit alleges discrimination against white and Asian students, while the Harvard lawsuit focuses on discrimination against Asian applicants. Both universities requested the court to halt the lawsuits until the U.S. Supreme Court provides clarification of relevant law by ruling in Fisher v. University of Texas at Austin for the second time. This Supreme Court case will likely be decided in June 2016 or slightly earlier.
Question: On which date were lawsuits filed against Harvard and Chapel Hill?

Output: November 17, 2014


Input: Read this: Semi-additive is the most common process: The unpatterned board has a thin layer of copper already on it. A reverse mask is then applied. (Unlike a subtractive process mask, this mask exposes those parts of the substrate that will eventually become the traces.) Additional copper is then plated onto the board in the unmasked areas; copper may be plated to any desired weight. Tin-lead or other surface platings are then applied. The mask is stripped away and a brief etching step removes the now-exposed bare original copper laminate from the board, isolating the individual traces. Some single-sided boards which have plated-through holes are made in this way. General Electric made consumer radio sets in the late 1960s using additive boards.
Question: Who made consumer radio sets in the late 1940s using additive boards?

Output:
unanswerable