In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Ex Input:
Who is the Queen married to?, Context: Burke took a leading role in the debate regarding the constitutional limits to the executive authority of the king. He argued strongly against unrestrained royal power and for the role of political parties in maintaining a principled opposition capable of preventing abuses, either by the monarch, or by specific factions within the government. His most important publication in this regard was his Thoughts on the Cause of the Present Discontents of 23 April 1770. Burke identified the "discontents" as stemming from the "secret influence" of a neo-Tory group he labelled as, the "king's friends", whose system "comprehending the exterior and interior administrations, is commonly called, in the technical language of the Court, Double Cabinet". Britain needed a party with "an unshaken adherence to principle, and attachment to connexion, against every allurement of interest". Party divisions "whether operating for good or evil, are things inseparable from free government".

Ex Output:
king


Ex Input:
What channel claimed that there had once been a civilization in the Amazon rainforest?, Context: The first European to travel the length of the Amazon River was Francisco de Orellana in 1542. The BBC's Unnatural Histories presents evidence that Orellana, rather than exaggerating his claims as previously thought, was correct in his observations that a complex civilization was flourishing along the Amazon in the 1540s. It is believed that the civilization was later devastated by the spread of diseases from Europe, such as smallpox. Since the 1970s, numerous geoglyphs have been discovered on deforested land dating between AD 0–1250, furthering claims about Pre-Columbian civilizations. Ondemar Dias is accredited with first discovering the geoglyphs in 1977 and Alceu Ranzi with furthering their discovery after flying over Acre. The BBC's Unnatural Histories presented evidence that the Amazon rainforest, rather than being a pristine wilderness, has been shaped by man for at least 11,000 years through practices such as forest gardening and terra preta.

Ex Output:
BBC


Ex Input:
What does partially filled orbitals cause?, Context: This combination of cancellations and σ and π overlaps results in dioxygen's double bond character and reactivity, and a triplet electronic ground state. An electron configuration with two unpaired electrons as found in dioxygen (see the filled π* orbitals in the diagram), orbitals that are of equal energy—i.e., degenerate—is a configuration termed a spin triplet state. Hence, the ground state of the O2 molecule is referred to as triplet oxygen.[b] The highest energy, partially filled orbitals are antibonding, and so their filling weakens the bond order from three to two. Because of its unpaired electrons, triplet oxygen reacts only slowly with most organic molecules, which have paired electron spins; this prevents spontaneous combustion.

Ex Output:
filling weakens the bond order from three to two