TASK DEFINITION: In this task, you're given a passage, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both passage and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the passage or linked information.
PROBLEM: Passage: A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness. The controlled synthesis of materials as thin films (a process referred to as deposition) is a fundamental step in many applications. A familiar example is the household mirror, which typically has a thin metal coating on the back of a sheet of glass to form a reflective interface. The process of silvering was once commonly used to produce mirrors, while more recently the metal layer is deposited using techniques such as sputtering. Advances in thin film deposition techniques during the 20th century have enabled a wide range of technological breakthroughs in areas such as magnetic recording media, electronic semiconductor devices, LEDs, optical coatings (such as antireflective coatings), hard coatings on cutting tools, and for both energy generation (e.g. thin-film solar cells) and storage (thin-film batteries). It is also being applied to pharmaceuticals, via thin-film drug delivery. A stack of thin films is called a multilayer.
 Link Information: none Answer: none

SOLUTION: How many thin films need to be stacked to have a special label applied to them?

PROBLEM: Passage: From 1805 onwards, Ruty took part to the campaigns of the Grande Armée during the War of the Third Coalition and War of the Fourth Coalition, serving as artillery park director for the Army Corps of Marshal Michel Ney, then Marshal Joachim Murat. A brigadier general from 1807, he served with distinction at the battle of Friedland. In 1808 he was created a baron of the Empire, serving as commander of the artillery school in Toulouse, before being sent to serve in Spain, towards the end of that year. He contributed significantly to the successful sieges of Ciudad Rodrigo and Almeida, before taking command of Marshal Jean-de-Dieu Soult's artillery in the armies of the South and of Andalusia. During this campaign he invented a type of howitzer that bears his name. In 1813, Ruty was recalled to France, and promoted to general of division, before being named commander of Marshal Nicolas Oudinot's Corps artillery during the Saxon campaign of the War of the Sixth Coalition. In November 1813, Ruty was created a count of the Empire. After Napoleon's abdication in 1814, Ruty served the Bourbon Restoration, but during the Hundred Days he joined the Emperor, who named him commander of the artillery of the Army of the North, with Ruty playing a significant role at the battle of Waterloo. General count de Ruty finished his military career as general inspector for artillery during the Second Restoration, subsequently serving as general director for gunpowders and saltpeter (1817), state counsellor (1818) and Peer of France from 1819.
 Link Information: the Emperor, who named him commander of the artillery of the Army of the North, with Ruty playing a significant role at the battle of Waterloo. Answer: France

SOLUTION: What country did Ruty fight in as commander of the artillery of the Army of the North?

PROBLEM: Passage: "Cola Song" was set on the track list of concert tours that promoted the singer's album Inna and its Japanese counterpart Body and the Sun in Europe and Japan. She also provided live performances of the recording at festival Alba Fest held in Alba Iulia, Romania, and at the World Trade Center Mexico. On both occasions, the singer additionally sung a cover version of Justin Bieber's "Love Yourself" (2015), with her interpreting a stripped-down version of "Endless" (2011) at the Mexican venue. Inna also opened the Untold Festival in 2016, and uploaded two videos on YouTube presenting her performing a stripped-down version of the recording—one on the roof of a building in Venice Beach, California, and the latter accompanied by an orchestra at Global Studios. Inna also delivered a performance of it at the 2018 Telehit Awards. "Cola Song" was used for American action comedy film Spy (2015) and the FIFA World Cup 2014, and was included on the competition's soundtrack. The single was further featured on dance video game Just Dance 2017, and Romanian singer impersonated Inna and provided a performance of the recording for Romanian reality talent show Te cunosc de undeva!.
 Link Information: The second edition of Untold took place in 2016 Answer: 300,000

SOLUTION:
What was the attendance of the Untold Festival the year that Inna opened?