instruction:
In this task, you're given a context, 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 context 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 context or linked information.
question:
Context: During the process of electing Leopoldo Calvo-Sotelo as Spain's new president in February 1981 Link Information: Leopoldo Ramón Pedro Calvo-Sotelo y Bustelo, 1st Marquess of Ría de Ribadeo (; 14 April 1926 – 3 May 2008) Answer: 55
answer:
How old was Leopoldo Calvo-Sotelo when elected president?


question:
Context: Sub-nationally, the United Kingdom has three legal systems, each of which derives from a particular geographical area and for a variety of historical reasons: English law, Scots law, and Northern Ireland law. Link Information: none Answer: none
answer:
Which of three legal systems in the United Kingdom was created first?


question:
Context: From 1957 to 1981 he was a staff member of Lawrence Berkeley National Laboratory Link Information: Lawrence Berkeley National Laboratory (LBNL), commonly referred to as Berkeley Lab, is a United States national laboratory that conducts scientific research on behalf of the United States Department of Energy (DOE). It is located in the Berkeley Hills near Berkeley, California,  Answer: Berkeley
answer:

In what city was Watson a laboratory staff member from 1957 to 1981?