Input: Bird
Feathers being critical to the survival of a bird, require maintenance. Apart from physical wear and tear, feathers face the onslaught of fungi, ectoparasitic feather mites and birdlice. The physical condition of feathers are maintained by preening often with the application of secretions from the preen gland. Birds also bathe in water or dust themselves. While some birds dip into shallow water, more aerial species may make aerial dips into water and arboreal species often make use of dew or rain that collect on leaves. Birds of arid regions make use of loose soil to dust-bathe. A behaviour termed as anting in which the bird encourages ants to run through their plumage is also thought to help them reduce the ectoparasite load in feathers. Many species will spread out their wings and expose them to direct sunlight and this too is thought to help in reducing fungal and ectoparasitic activity that may lead to feather damage.

What do birds bathe in?
Output: water or dust

Input: Article: Widowed in 1861, the grief-stricken Queen withdrew from public life and left Buckingham Palace to live at Windsor Castle, Balmoral Castle and Osborne House. For many years the palace was seldom used, even neglected. In 1864, a note was found pinned to the fence of Buckingham Palace, saying: "These commanding premises to be let or sold, in consequence of the late occupant's declining business." Eventually, public opinion forced the Queen to return to London, though even then she preferred to live elsewhere whenever possible. Court functions were still held at Windsor Castle, presided over by the sombre Queen habitually dressed in mourning black, while Buckingham Palace remained shuttered for most of the year.

Now answer this question: Which house did Queen Victoria stay at after she left Buckingham?

Output: Osborne House

Article: Apollo (Attic, Ionic, and Homeric Greek: , Apollon (GEN ); Doric: , Apellon; Arcadocypriot: , Apeilon; Aeolic: , Aploun; Latin: Apollo) is one of the most important and complex of the Olympian deities in classical Greek and Roman religion and Greek and Roman mythology. The ideal of the kouros (a beardless, athletic youth), Apollo has been variously recognized as a god of music, truth and prophecy, healing, the sun and light, plague, poetry, and more. Apollo is the son of Zeus and Leto, and has a twin sister, the chaste huntress Artemis. Apollo is known in Greek-influenced Etruscan mythology as Apulu.

Question: Who is Apollo's twin sister?
Ans: Artemis

Here is a question about this article: The majority of primary and secondary schools and further-education colleges in London are controlled by the London boroughs or otherwise state-funded; leading examples include City and Islington College, Ealing, Hammersmith and West London College, Leyton Sixth Form College, Tower Hamlets College and Bethnal Green Academy. There are also a number of private schools and colleges in London, some old and famous, such as City of London School, Harrow, St Paul's School, Haberdashers' Aske's Boys' School, University College School, The John Lyon School, Highgate School and Westminster School.
What is the answer to this question: Who overseas the public primary and secondary school systems in London?
****
So... the London boroughs

The problem: Answer a question about this article:
Among the oldest surviving examples of Nizam architecture in Hyderabad is the Chowmahalla Palace, which was the seat of royal power. It showcases a diverse array of architectural styles, from the Baroque Harem to its Neoclassical royal court. The other palaces include Falaknuma Palace (inspired by the style of Andrea Palladio), Purani Haveli, King Kothi and Bella Vista Palace all of which were built at the peak of Nizam rule in the 19th century. During Mir Osman Ali Khan's rule, European styles, along with Indo-Islamic, became prominent. These styles are reflected in the Falaknuma Palace and many civic monuments such as the Hyderabad High Court, Osmania Hospital, Osmania University, the State Central Library, City College, the Telangana Legislature, the State Archaeology Museum, Jubilee Hall, and Hyderabad and Kachiguda railway stations. Other landmarks of note are Paigah Palace, Asman Garh Palace, Basheer Bagh Palace, Errum Manzil and the Spanish Mosque, all constructed by the Paigah family.:1617
Which palace in Hyderabad did the work of Andrea Palladio influence?
****
The answer: Falaknuma Palace

The problem: Answer a question about this article:
A global city, Boston is placed among the top 30 most economically powerful cities in the world. Encompassing $363 billion, the Greater Boston metropolitan area has the sixth-largest economy in the country and 12th-largest in the world.
What ranking in the country does Greater Boston metro hold as far as economy?
****
The answer:
sixth-largest