Which of the two following sentences from the article include the central ideas of the article?
1.)Nevertheless, slavery received important protections in the Constitution.
2.)A fugitive slave clause in the Constitution required the return of runaway slaves to their owners.
3.)Many of the framers had moral qualms about slavery, and some of them joined anti-slavery societies.
4.)If the constitution temporarily strengthened slavery, it also created a central government powerful enough to eventually outlaw the institution.
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