Use a disfluent question or a proper question and find the answer to the question based on the given context or return None if an answer can't be found. A disfluent question is a question that has some interruptions in it while framing. A proper question is the correct form of the question without any disfluency.

Input: Consider Input: proper question: What does decreasing inequality harm? 
 disfluent question: How does or no make that what does decreasing inequality harm? 
 context: According to economists David Castells-Quintana and Vicente Royuela, increasing inequality harms economic growth. High and persistent unemployment, in which inequality increases, has a negative effect on subsequent long-run economic growth. Unemployment can harm growth not only because it is a waste of resources, but also because it generates redistributive pressures and subsequent distortions, drives people to poverty, constrains liquidity limiting labor mobility, and erodes self-esteem promoting social dislocation, unrest and conflict. Policies aiming at controlling unemployment and in particular at reducing its inequality-associated effects support economic growth.

Output: None


Input: Consider Input: proper question: When do antibodies not circulate in? 
 disfluent question: When do offspring secrete no when do antibodies not circulate in? 
 context: A B cell identifies pathogens when antibodies on its surface bind to a specific foreign antigen. This antigen/antibody complex is taken up by the B cell and processed by proteolysis into peptides. The B cell then displays these antigenic peptides on its surface MHC class II molecules. This combination of MHC and antigen attracts a matching helper T cell, which releases lymphokines and activates the B cell. As the activated B cell then begins to divide, its offspring (plasma cells) secrete millions of copies of the antibody that recognizes this antigen. These antibodies circulate in blood plasma and lymph, bind to pathogens expressing the antigen and mark them for destruction by complement activation or for uptake and destruction by phagocytes. Antibodies can also neutralize challenges directly, by binding to bacterial toxins or by interfering with the receptors that viruses and bacteria use to infect cells.

Output: None


Input: Consider Input: proper question: What is lower in public schools rather than private ones? 
 disfluent question: In what, um sorry, what is lower in public schools rather than private ones? 
 context: In the Philippines, the private sector has been a major provider of educational services, accounting for about 7.5% of primary enrollment, 32% of secondary enrollment and about 80% of tertiary enrollment. Private schools have proven to be efficient in resource utilization. Per unit costs in private schools are generally lower when compared to public schools. This situation is more evident at the tertiary level. Government regulations have given private education more flexibility and autonomy in recent years, notably by lifting the moratorium on applications for new courses, new schools and conversions, by liberalizing tuition fee policy for private schools, by replacing values education for third and fourth years with English, mathematics and natural science at the option of the school, and by issuing the revised Manual of Regulations for Private Schools in August 1992.


Output: None