Assertion: prerogative's use | /r/CapableOf | enter into lisbon
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Source sentences:
text: In this case, the prerogative of foreign affairs in relation to EU matters was plainly not ‘abrogated’ (abolished) by the ECA: it continued to exist post-1972, as shown by its use to negotiate and enter into numerous subsequent treaties, such as the Single European Act (1986) and the Treaties of Maastricht (1992), Amsterdam (1997) and Lisbon (2007).