In 2020 seven nations signed the agreement to establish principles on how countries should co-operate on the Moon's surface.
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I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas:
Stage bosses at Selkirk Musical Theatre Group announced last May that they had successfully applied for the rights to perform We Will Rock You.