Most guarantee or extend the operation of democracy (such as women's suffrage), rather than defend social norms (such as Prohibition).

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It amounted to a guarantee that closer eurozone co-operation would not undermine the EU single market coupled with technical safeguards for the City of London.

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At the time, the companies signed an agreement with CADE to Preserve Reversibility of the Operation in order to guarantee the government that the companies could dissolve the merger if the transaction was not approved by CADE.

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