Input: Article: Von Neumann raised the intellectual and mathematical level of economics in several stunning publications. For his model of an expanding economy, von Neumann proved the existence and uniqueness of an equilibrium using his generalization of the Brouwer fixed-point theorem. Von Neumann's model of an expanding economy considered the matrix pencil  A − λB with nonnegative matrices A and B; von Neumann sought probability vectors p and q and a positive number λ that would solve the complementarity equation

Now answer this question: What did von Neumann consider for his model of expanding economy?

Output: matrix pencil  A − λB with nonnegative matrices A and B


Article: From the beginning of 2014, Madonna began to make multiple media appearances. She appeared at the 56th Annual Grammy Awards in January 2014, performing "Open Your Heart" alongside rappers Macklemore & Ryan Lewis and singer Mary Lambert, who sang their single "Same Love", as 33 couples were wed onstage, officiated by Queen Latifah. Days later, she joined singer Miley Cyrus on her MTV Unplugged special, singing a mash-up of "Don't Tell Me" and Cyrus' single "We Can't Stop" (2013). She also extended her business ventures and in February 2014 the singer premiered MDNA Skin, a range of skin care products, in Tokyo, Japan. After visiting her hometown of Detroit during May 2014, Madonna decided to contribute funds to three of the city's organizations, to help eliminate poverty from there. The singer released a statement saying that she was inspired by their work, adding that "it was obvious to me that I had to get involved and be part of the solution to help Detroit recover".

Question: What song did Madonna sing at the ceremony?
Ans: Open Your Heart


Here is a question about this article: The city hosts numerous theatres and production houses, including the Yale Repertory Theatre, the Long Wharf Theatre, and the Shubert Theatre. There is also theatre activity from the Yale School of Drama, which works through the Yale University Theatre and the student-run Yale Cabaret. Southern Connecticut State University hosts the Lyman Center for the Performing Arts. The shuttered Palace Theatre (opposite the Shubert Theatre) is being renovated and will reopen as the College Street Music Hall in May, 2015. Smaller theatres include the Little Theater on Lincoln Street. Cooperative Arts and Humanities High School also boasts a state-of-the-art theatre on College Street. The theatre is used for student productions as well as the home to weekly services to a local non-denominational church, the City Church New Haven.
What is the answer to this question: What school in New Haven is known for it's theater being used by both students and church?
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So... Cooperative Arts and Humanities High School


The problem: Answer a question about this article:
Bacteria often attach to surfaces and form dense aggregations called biofilms or bacterial mats. These films can range from a few micrometers in thickness to up to half a meter in depth, and may contain multiple species of bacteria, protists and archaea. Bacteria living in biofilms display a complex arrangement of cells and extracellular components, forming secondary structures, such as microcolonies, through which there are networks of channels to enable better diffusion of nutrients. In natural environments, such as soil or the surfaces of plants, the majority of bacteria are bound to surfaces in biofilms. Biofilms are also important in medicine, as these structures are often present during chronic bacterial infections or in infections of implanted medical devices, and bacteria protected within biofilms are much harder to kill than individual isolated bacteria.
What is part of secondary structure in the complex formation of bacteria?
****
The answer: microcolonies,


Problem: Please answer a question about the following article about Affirmative action in the United States:
Following the Sergeant Isaac Woodard incident, President Harry S. Truman, himself a combat veteran of World War I, issued Executive Order 9808 establishing the President's Committee on Civil Rights to examine the violence and recommend appropriate federal legislation. Hearing of the incident, Truman turned to NAACP leader Walter Francis White and declared, "My God! I had no idea it was as terrible as that. We've got to do something." In 1947 the committee published its findings, To Secure These Rights. The book was widely read, influential, and considered utopian for the times: "In our land men are equal, but they are free to be different. From these very differences among our people has come the great human and national strength of America." The report discussed and demonstrated racial discrimination in basic freedoms, education, public facilities, personal safety, and employment opportunities. The committee was disturbed by the state of race relations, and included the evacuation of Americans of Japanese descent during the war "made without a trial or any sort of hearing…Fundamental to our whole system of law is the belief that guilt is personal and not a matter of heredity or association." The recommendations were radical, calling for federal policies and laws to end racial discrimination and bring about equality: "We can tolerate no restrictions upon the individual which depend upon irrelevant factors such as his race, his color, his religion, or the social position to which he is born." To Secure These Rights set the liberal legislative agenda for the next generation that eventually would be signed into law by Lyndon B. Johnson.:35–36
Who in the generation following the "To Secure These Rights" findings sign legislation for affirmative action into law?
A: Lyndon B. Johnson


Question: Read this and answer the question

The formation of the ice giants, Neptune and Uranus, has proven difficult to model precisely. Current models suggest that the matter density in the outer regions of the Solar System was too low to account for the formation of such large bodies from the traditionally accepted method of core accretion, and various hypotheses have been advanced to explain their formation. One is that the ice giants were not formed by core accretion but from instabilities within the original protoplanetary disc and later had their atmospheres blasted away by radiation from a nearby massive OB star.

What is too low to account for the formation of Neptune?
Answer:
matter density