Question: In the financial year ended 31 July 2013, Imperial had a total net income of 822.0 million (2011/12 765.2 million) and total expenditure of 754.9 million (2011/12 702.0 million). Key sources of income included 329.5 million from research grants and contracts (2011/12 313.9 million), 186.3 million from academic fees and support grants (2011/12 163.1 million), 168.9 million from Funding Council grants (2011/12 172.4 million) and 12.5 million from endowment and investment income (2011/12 8.1 million). During the 2012/13 financial year Imperial had a capital expenditure of 124 million (2011/12 152 million).
Is there an answer to this question: What college ended the fiscal year 2013 with an income of 822 thousand pounds?

Answer: unanswerable

Question: The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. First conceived by Julius Lilienfeld in 1926 and practically implemented in 1947 by American physicists John Bardeen, Walter Brattain, and William Shockley, the transistor revolutionized the field of electronics, and paved the way for smaller and cheaper radios, calculators, and computers, among other things. The transistor is on the list of IEEE milestones in electronics, and Bardeen, Brattain, and Shockley shared the 1956 Nobel Prize in Physics for their achievement.
Is there an answer to this question: When were smaller, cheaper radios introduced?

Answer: unanswerable

Question: Seafood and fish dishes include squid, octopus, red mullet, and sea bass. Cucumber and tomato are used widely in salads. Common vegetable preparations include potatoes in olive oil and parsley, pickled cauliflower and beets, asparagus and taro. Other traditional delicacies of are meat marinated in dried coriander seeds and wine, and eventually dried and smoked, such as lountza (smoked pork loin), charcoal-grilled lamb, souvlaki (pork and chicken cooked over charcoal), and sheftalia (minced meat wrapped in mesentery). Pourgouri (bulgur, cracked wheat) is the traditional source of carbohydrate other than bread, and is used to make the delicacy koubes.
Is there an answer to this question: What is sheftalia?

Answer: minced meat wrapped in mesentery

Question: Originally much of the valley laid beneath the waters of Lake Texcoco, a system of interconnected salt and freshwater lakes. The Aztecs built dikes to separate the fresh water used to raise crops in chinampas and to prevent recurrent floods. These dikes were destroyed during the siege of Tenochtitlan, and during colonial times the Spanish regularly drained the lake to prevent floods. Only a small section of the original lake remains, located outside the Federal District, in the municipality of Atenco, State of Mexico.
Is there an answer to this question: What made up Lake Texcoco?

Answer:
a system of interconnected salt and freshwater lakes