Input: Read this: There are three classes of components for oxide glasses: network formers, intermediates, and modifiers. The network formers (silicon, boron, germanium) form a highly cross-linked network of chemical bonds. The intermediates (titanium, aluminium, zirconium, beryllium, magnesium, zinc) can act as both network formers and modifiers, according to the glass composition. The modifiers (calcium, lead, lithium, sodium, potassium) alter the network structure; they are usually present as ions, compensated by nearby non-bridging oxygen atoms, bound by one covalent bond to the glass network and holding one negative charge to compensate for the positive ion nearby. Some elements can play multiple roles; e.g. lead can act both as a network former (Pb4+ replacing Si4+), or as a modifier.
Question: What type of components change the network's shape?

Output: modifiers

QUES: Of the 80 torch-bearers in London, Sir Steve Redgrave, who started the relay, mentioned to the media that he had received e-mailed pleas to boycott the event and could "see why they would like to make an issue" of it. Francesca Martinez and Richard Vaughan refused to carry the torch, while Konnie Huq decided to carry it and also speak out against China. The pro-Tibetan Member of Parliament Norman Baker asked all bearers to reconsider. Amid pressure from both directions, Prime Minister Gordon Brown welcomed the torch outside 10 Downing Street without holding or touching it. The London relay saw the torch surrounded by what the BBC described as "a mobile protective ring." Protests began as soon as Redgrave started the event, leading to at least thirty-five arrests. In Ladbroke Grove a demonstrator attempted to snatch the torch from Konnie Huq in a momentary struggle, and in a separate incident, a fire extinguisher was set off near the torch. The Chinese ambassador carried the torch through Chinatown after an unpublicized change to the route amid security concerns. The torch made an unscheduled move onto a bus along Fleet Street amid security concerns and efforts to evade the protesters. In an effort to counter the pro-Tibet protesters and show their support for the 2008 Beijing Olympics, more than 2,000 Chinese also gathered on the torch route and demonstrated with signs, banners and Chinese flags. A large number of supporters were concentrated in Trafalgar Square, displaying the Olympic slogan "One World, One Dream".

Who got emails asking him to boycott the torch relay?
What is the answer?
ANS: Sir Steve Redgrave

QUES: An unconventional power succession system was established (rota system) whereby power was transferred to the eldest member of the ruling dynasty rather than from father to son, i.e. in most cases to the eldest brother of the ruler, fomenting constant hatred and rivalry within the royal family.[citation needed] Familicide was frequently deployed in obtaining power and can be traced particularly during the time of the Yaroslavichi rule (sons of Yaroslav) when the established system was skipped in the establishment of Vladimir II Monomakh as the Grand Prince of Kiev,[clarification needed] in turn creating major squabbles between Olegovichi from Chernihiv, Monomakhs from Pereyaslav, Izyaslavichi from Turov/Volhynia, and Polotsk Princes.[citation needed]
Who improved relations between the Olegovichi and Monomakhs?

ANS: unanswerable

The most widely spoken family of languages in southern Europe are the Romance languages, the heirs of Latin, which have spread from the Italian peninsula, and are emblematic of Southwestern Europe. (See the Latin Arch.) By far the most common romance languages in Southern Europe are: Italian, which is spoken by over 50 million people in Italy, San Marino, and the Vatican; and Spanish, which is spoken by over 40 million people in Spain and Gibraltar. Other common romance languages include: Romanian, which is spoken in Romania and Moldova; Portuguese, which is spoken in Portugal; Catalan, which is spoken in eastern Spain; and Galician, which is spoken in northwestern Spain.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where can people who speak Catalan be found?
Ah, so.. eastern Spain

Question: Some biographical accounts include the autobiography Life on the Color Line: The True Story of a White Boy Who Discovered He Was Black by Gregory Howard Williams; One Drop: My Father's Hidden LifeA Story of Race and Family Secrets written by Bliss Broyard about her father Anatole Broyard; the documentary Colored White Boy about a white man in North Carolina who discovers that he is the descendant of a white plantation owner and a raped African slave; and the documentary on The Sanders Women of Shreveport, Louisiana.
Try to answer this question if possible: What book was written about Bliss Broyard?
Answer: unanswerable

Input: Read this: Portugal is a significant European minerals producer and is ranked among Europe's leading copper producers. The nation is also a notable producer of tin, tungsten and uranium. However, the country lacks the potential to conduct hydrocarbon exploration and aluminium, a limitation that has hindered the development of Portugal's mining and metallurgy sectors. Although the country has vast iron and coal reservesmainly in the northafter the 1974 revolution and the consequent economic globalization, low competitiveness forced a decrease in the extraction activity for these minerals. The Panasqueira and Neves-Corvo mines are among the most recognised Portuguese mines that are still in operation.[citation needed]
Question: What type of exploration does Portugal lack the potential for?

Output:
hydrocarbon