Information:  - The National Gallery of Art, and its attached Sculpture Garden, is a national art museum in Washington, D.C., located on the National Mall, between 3rd and 9th Streets, at Constitution Avenue NW. Open to the public and free of charge, the museum was privately established in 1937 for the American people by a joint resolution of the United States Congress. Andrew W. Mellon donated a substantial art collection and funds for construction. The core collection includes major works of art donated by Paul Mellon, Ailsa Mellon Bruce, Lessing J. Rosenwald, Samuel Henry Kress, Rush Harrison Kress, Peter Arrell Brown Widener, Joseph E. Widener, and Chester Dale. The Gallery's collection of paintings, drawings, prints, photographs, sculpture, medals, and decorative arts traces the development of Western Art from the Middle Ages to the present, including the only painting by Leonardo da Vinci in the Americas and the largest mobile created by Alexander Calder.  - Rococo (or ), less commonly roccoco, or "Late Baroque", is an early to late French 18th-century artistic movement and style, affecting many aspects of the arts including painting, sculpture, architecture, interior design, decoration, literature, music, and theatre. It developed in the early 18th century in Paris, France as a reaction against the grandeur, symmetry, and strict regulations of the previous Baroque style, especially of the Palace of Versailles, until it was redone. Rococo artists and architects used a more jocular, florid, and graceful approach to the Baroque. Their style was ornate and used light colours, asymmetrical designs, curves, and gold. Unlike the political Baroque, the Rococo had playful and witty themes. The interior decoration of Rococo rooms was designed as a total work of art with elegant and ornate furniture, small sculptures, ornamental mirrors, and tapestry complementing architecture, reliefs, and wall paintings.  - Samuel Henry Kress (July 23, 1863  September 22, 1955) was a businessman and philanthropist, founder of the S. H. Kress & Co. five and ten cent store chain. With his fortune, Kress amassed one of the most significant collections of Italian Renaissance and European artwork assembled in the 20th century. In the 1950s and 1960s, a foundation established by Kress would donate 776 works of art from the Kress collection to 18 regional art museums in the United States.  - Leonardo di ser Piero da Vinci (15 April 14522 May 1519), more commonly Leonardo da Vinci or simply Leonardo, was an Italian polymath whose areas of interest included invention, painting, sculpting, architecture, science, music, mathematics, engineering, literature, anatomy, geology, astronomy, botany, writing, history, and cartography. He has been variously called the father of palaeontology, ichnology, and architecture, and is widely considered one of the greatest painters of all time. Sometimes credited with the inventions of the parachute, helicopter and tank, he epitomised the Renaissance humanist ideal.  - Jean-Honoré Fragonard (4 April 1732  22 August 1806) was a French painter and printmaker whose late Rococo manner was distinguished by remarkable facility, exuberance, and hedonism. One of the most prolific artists active in the last decades of the "Ancien Régime", Fragonard produced more than 550 paintings (not counting drawings and etchings), of which only five are dated. Among his most popular works are genre paintings conveying an atmosphere of intimacy and veiled eroticism.  - In the history of Europe, the Middle Ages or medieval period lasted from the 5th to the 15th century. It began with the fall of the Western Roman Empire and merged into the Renaissance and the Age of Discovery. The Middle Ages is the middle period of the three traditional divisions of Western history: classical antiquity, the medieval period, and the modern period. The medieval period is itself subdivided into the Early, High, and Late Middle Ages.  - Young Girl Reading , or The Reader ( French : La Liseuse ) , is an 18th - century oil painting by Jean - Honoré Fragonard . It was purchased by the National Gallery of Art in Washington , DC in 1961 using funds donated by Ailsa Mellon Bruce , the daughter of Andrew W. Mellon , following her father 's death .    What entity does 'a young girl reading' has the relation 'movement' with?
A:
rococo