Input: Read this: Cardiac rehabilitation benefits many who have experienced myocardial infarction, even if there has been substantial heart damage and resultant left ventricular failure; ideally other medical conditions that could interfere with participation should be managed optimally. It should start soon after discharge from hospital. The program may include lifestyle advice, exercise, social support, as well as recommendations about driving, flying, sport participation, stress management, and sexual intercourse.
Question: Cardiac rehabilitation is not an option under what circumstances?

Output: unanswerable


QUES: Although professional wrestling is worked, there is a high chance of injury, and even death. Strikes are often stiff, especially in Japan and in independent wrestling promotions such as Combat Zone Wrestling (CZW) and Ring of Honor (ROH). The ring is often made out of 2 by 8 timber planks. Many of the injuries that occur in pro wrestling are shoulders, knee, back, neck, and rib injuries. Chronic traumatic encephalopathy and traumatic brain injuries have also been linked to pro wrestling, including in the double-murder suicide case involving Chris Benoit. Professional wrestler Davey Richards said in 2015, "We train to take damage, we know we are going to take damage and we accept that".

What are the risks of wrestling?
What is the answer?
ANS: high chance of injury, and even death


QUES: It is best for the receiving antenna to match the polarization of the transmitted wave for optimum reception. Intermediate matchings will lose some signal strength, but not as much as a complete mismatch. A circularly polarized antenna can be used to equally well match vertical or horizontal linear polarizations. Transmission from a circularly polarized antenna received by a linearly polarized antenna (or vice versa) entails a 3 dB reduction in signal-to-noise ratio as the received power has thereby been cut in half.
What is the best for an recieving antenna for optimum reception?

ANS: match the polarization


Greek cuisine is characteristic of the healthy Mediterranean diet, which is epitomized by dishes of Crete. Greek cuisine incorporates fresh ingredients into a variety of local dishes such as moussaka, stifado, Greek salad, fasolada, spanakopita and souvlaki. Some dishes can be traced back to ancient Greece like skordalia (a thick purée of walnuts, almonds, crushed garlic and olive oil), lentil soup, retsina (white or rosé wine sealed with pine resin) and pasteli (candy bar with sesame seeds baked with honey). Throughout Greece people often enjoy eating from small dishes such as meze with various dips such as tzatziki, grilled octopus and small fish, feta cheese, dolmades (rice, currants and pine kernels wrapped in vine leaves), various pulses, olives and cheese. Olive oil is added to almost every dish.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What food can be traced back to ancient Greece?
Ah, so.. skordalia


Question: The Portuguese explorer Diogo Cão reached the mouth of the Congo in 1484. Commercial relationships quickly grew between the inland Bantu kingdoms and European merchants who traded various commodities, manufactured goods, and people captured from the hinterlands. After centuries as a major hub for transatlantic trade, direct European colonization of the Congo river delta began in the late 19th century, subsequently eroding the power of the Bantu societies in the region.
Try to answer this question if possible: When did formal colonization of the Congo River delta begin?
Answer: late 19th century


Question: Also labeled an Orphist by Apollinaire, Marcel Duchamp was responsible for another extreme development inspired by Cubism. The ready-made arose from a joint consideration that the work itself is considered an object (just as a painting), and that it uses the material detritus of the world (as collage and papier collé in the Cubist construction and Assemblage). The next logical step, for Duchamp, was to present an ordinary object as a self-sufficient work of art representing only itself. In 1913 he attached a bicycle wheel to a kitchen stool and in 1914 selected a bottle-drying rack as a sculpture in its own right.
Try to answer this question if possible:  By whom was Marcel Duchamp labeled not an Orphanist?
Answer:
unanswerable