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.

Example Input: proper question: What creates immunological memory before the initial responds to a pathogen? 
 disfluent question: What creates immunological detection uh memory before the initial responds to a pathogen? 
 context: Pathogens can rapidly evolve and adapt, and thereby avoid detection and neutralization by the immune system; however, multiple defense mechanisms have also evolved to recognize and neutralize pathogens. Even simple unicellular organisms such as bacteria possess a rudimentary immune system, in the form of enzymes that protect against bacteriophage infections. Other basic immune mechanisms evolved in ancient eukaryotes and remain in their modern descendants, such as plants and invertebrates. These mechanisms include phagocytosis, antimicrobial peptides called defensins, and the complement system. Jawed vertebrates, including humans, have even more sophisticated defense mechanisms, including the ability to adapt over time to recognize specific pathogens more efficiently. Adaptive (or acquired) immunity creates immunological memory after an initial response to a specific pathogen, leading to an enhanced response to subsequent encounters with that same pathogen. This process of acquired immunity is the basis of vaccination.
Example Output: None

Example Input: proper question: What could promote free radical production during sleep times? 
 disfluent question: What could the response against any no what promote free radical production during sleep times? 
 context: In contrast, during wake periods differentiated effector cells, such as cytotoxic natural killer cells and CTLs (cytotoxic T lymphocytes), peak in order to elicit an effective response against any intruding pathogens. As well during awake active times, anti-inflammatory molecules, such as cortisol and catecholamines, peak. There are two theories as to why the pro-inflammatory state is reserved for sleep time. First, inflammation would cause serious cognitive and physical impairments if it were to occur during wake times. Second, inflammation may occur during sleep times due to the presence of melatonin. Inflammation causes a great deal of oxidative stress and the presence of melatonin during sleep times could actively counteract free radical production during this time.
Example Output: None

Example Input: proper question: Where is St. Gregory's College located? 
 disfluent question: What three ugh, um where is St. Gregory's College located? 
 context: Although most are non-aligned, some of the best known independent schools also belong to the large, long-established religious foundations, such as the Anglican Church, Uniting Church and Presbyterian Church, but in most cases, they do not insist on their students’ religious allegiance. These schools are typically viewed as 'elite schools'. Many of the 'grammar schools' also fall in this category. They are usually expensive schools that tend to be up-market and traditional in style, some Catholic schools fall into this category as well, e.g. St Joseph's College, Gregory Terrace, Saint Ignatius' College, Riverview, St Gregory's College, Campbelltown, St Aloysius' College (Sydney) and St Joseph's College, Hunters Hill, as well as Loreto Kirribilli, Monte Sant Angelo Mercy College, St Ursula's College and Loreto Normanhurst for girls.
Example Output:
None