Triple

Target entity: Constitutional Convention of 1787
Context triple: [William Samuel Johnson, participatedIn, Constitutional Convention of 1787]

• A. Constitutional Convention chosen
  The Constitutional Convention was the 1787 gathering of delegates in Philadelphia that drafted the United States Constitution, establishing the framework of the federal government.
• B. Annapolis Convention of 1786
  The Annapolis Convention of 1786 was a meeting of delegates from several U.S. states that convened to address trade and commerce problems under the Articles of Confederation, ultimately leading to the call for the Constitutional Convention in Philadelphia.
• C. Assembly of Notables (1787)
  The Assembly of Notables (1787) was a specially convened gathering of French aristocrats, clergy, and officials called by King Louis XVI to consider financial and tax reforms in the final years of the Ancien Régime.
• D. Federal Convention
  The Federal Convention is a special constitutional body in Germany that convenes solely to elect the President of the Federal Republic.
• E. Hillsborough Convention of 1788
  The Hillsborough Convention of 1788 was a gathering of North Carolina delegates who debated but initially refused to ratify the newly drafted U.S. Constitution, reflecting strong Anti-Federalist concerns.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.