Input: Read this: The last opus number that Chopin himself used was 65, allocated to the Cello Sonata in G minor. He expressed a deathbed wish that all his unpublished manuscripts be destroyed. At the request of the composer's mother and sisters, however, his musical executor Julian Fontana selected 23 unpublished piano pieces and grouped them into eight further opus numbers (Opp. 6673), published in 1855. In 1857, 17 Polish songs that Chopin wrote at various stages of his life were collected and published as Op. 74, though their order within the opus did not reflect the order of composition.
Question: Who was Chopin's musical executor?

Output: Julian Fontana

QUES: Active solar techniques use photovoltaics, concentrated solar power, solar thermal collectors, pumps, and fans to convert sunlight into useful outputs. Passive solar techniques include selecting materials with favorable thermal properties, designing spaces that naturally circulate air, and referencing the position of a building to the Sun. Active solar technologies increase the supply of energy and are considered supply side technologies, while passive solar technologies reduce the need for alternate resources and are generally considered demand side technologies.

What is an active solar technique used to generate energy?
What is the answer?
ANS: designing spaces that naturally circulate air

QUES: Victoria married her first cousin, Prince Albert of Saxe-Coburg and Gotha, in 1840. Their nine children married into royal and noble families across the continent, tying them together and earning her the sobriquet "the grandmother of Europe". After Albert's death in 1861, Victoria plunged into deep mourning and avoided public appearances. As a result of her seclusion, republicanism temporarily gained strength, but in the latter half of her reign her popularity recovered. Her Golden and Diamond Jubilees were times of public celebration.
Who did Victoria marry?

ANS: Prince Albert

The Estonian dialects are divided into two groups the northern and southern dialects, historically associated with the cities of Tallinn in the north and Tartu in the south, in addition to a distinct kirderanniku dialect, that of the northeastern coast of Estonia.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How many groups of Estonian dialects are there?
Ah, so.. two

Question: Industry is diversified, ranging from automotive (Volkswagen Autoeuropa and Peugeot Citroen), aerospace (Embraer and OGMA), electronics and textiles, to food, chemicals, cement and wood pulp. Volkswagen Group's AutoEuropa motor vehicle assembly plant in Palmela is among the largest foreign direct investment projects in Portugal. Modern non-traditional technology-based industries, such as aerospace, biotechnology and information technology, have been developed in several locations across the country. Alverca, Covilha, Evora, and Ponte de Sor are the main centres of the Portuguese aerospace industry, which is led by Brazil-based company Embraer and the Portuguese company OGMA. Following the turn of the 21st century, many major biotechnology and information technology industries have been founded, and are concentrated in the metropolitan areas of Lisbon, Porto, Braga, Coimbra and Aveiro.[citation needed]
Try to answer this question if possible: What are the main centers for the Portuguese aerospace industries?
Answer: Alverca, Covilha, Evora, and Ponte de Sor

Question: The party's decision-making bodies on a national level formally include the National Executive Committee (NEC), Labour Party Conference and National Policy Forum (NPF)although in practice the Parliamentary leadership has the final say on policy. The 2008 Labour Party Conference was the first at which affiliated trade unions and Constituency Labour Parties did not have the right to submit motions on contemporary issues that would previously have been debated. Labour Party conferences now include more "keynote" addresses, guest speakers and question-and-answer sessions, while specific discussion of policy now takes place in the National Policy Forum.
Try to answer this question if possible: What includes less keynote addresses now?
Answer:
unanswerable