input question: Generate a question about the topic "Heroes (TV series)" whose answer would be: Four complete seasons aired, ending on February 8, 2010..???
output answer: how many seasons heroes?

input question: Generate a question about the topic "Geothermal energy" whose answer would be: The Geothermal energy of the Earth's crust originates from the original formation of the planet (20%) and from radioactive decay of minerals (80%)..???
output answer: what is the source of geothermal energy?

input question: Generate a question about the topic "Dwarf planet" whose answer would be: More explicitly, the International Astronomical Union (IAU) defines a dwarf planet as a celestial body in direct orbit of the Sun that is massive enough for its shape to be controlled by gravitation , but that unlike a planet has not cleared its orbital region of other objects..???
output answer: what makes a dwarf planet?

input question: Generate a question about the topic "Human leg" whose answer would be: The human leg is the entire lower extremity or limb of the human body , including the foot , thigh and even the hip or gluteal region; however, the precise definition in human anatomy refers only to the section of the lower limb extending from the knee to the ankle ..???
output answer:
where is the human thigh located??