In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

Q: The International System of Units (SI) defines seven units of measure as a basic set from which all other SI units can be derived. The SI base units and their physical quantities are the metre for measurement of length, the kilogram for mass, the second for time, the ampere for electric current, the kelvin for temperature, the candela for luminous intensity, and the mole for amount of substance.

A: what are all units of the si based on
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Q: A responsibility assignment matrix (RAM), also known as RACI matrix / resi / or linear responsibility chart (LRC), describes the participation by various roles in completing tasks or deliverables for a project or business process. It is especially useful in clarifying roles and responsibilities in cross-functional / departmental projects and processes.

A: what is the purpose of a linear responsibility chart
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Q: Republican President Donald Trump and First Lady Melania Trump attended church services in observation of a special National Day of Prayer, which Trump previously declared, in support of the victims of Hurricane Harvey dwelling in the state of Texas, to 'uplift one another and assist those suffering from the consequences of this terrible storm.'

A:
when was the last time a president declared a national day of prayer
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