user: Question: Which Presentation of Credentials is listed for the Appointed by Benjamin Harrison?
Columns: ['Representative', 'Title', 'Presentation of Credentials', 'Termination of Mission', 'Appointed by']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Dabney H. Maury', 'Envoy Extraordinary and Minister Plenipotentiary', 'January 20, 1887', 'June 22, 1889', 'Grover Cleveland']
SQL:

assistant: SELECT "Presentation of Credentials" FROM "Table" WHERE "Appointed by" = 'Benjamin Harrison';