Table:
State (class)	Vacator	Reason for change	Successor	Date of successor's formal installation

Washington (1)	Monrad Wallgren (D)	Resigned January 9, 1945, after being elected Governor of Washington. Successor was appointed to serve until the next election.	Hugh Mitchell (D)	January 10, 1945

Connecticut (1)	Francis T. Maloney (D)	Died January 16, 1945. Successor was appointed to serve until a special election.	Thomas C. Hart (R)	February 15, 1945

Missouri (1)	Harry S. Truman (D)	Resigned January 17, 1945, after being elected Vice President of the United States. Successor was appointed to serve until the next election.	Frank P. Briggs (D)	January 18, 1945

North Dakota (3)	John Moses (D)	Died March 3, 1945. Successor was appointed to serve until a special election, which he subsequently won.	Milton Young (R)	March 12, 1945

Nevada (1)	James G. Scrugham (D)	Died June 23, 1945. Successor was appointed to serve until the next election.	Edward P. Carville (D)	July 25, 1945

California (1)	Hiram Johnson (R)	Died August 6, 1945. Successor was appointed to serve until a special election, which he subsequently won.	William F. Knowland (R)	August 26, 1945

Ohio (1)	Harold H. Burton (R)	Resigned September 30, 1945, after being appointed an Associate Justice of the Supreme Court of the United States. Successor was appointed to serve until a special election.	James W. Huffman (D)	October 8, 1945

Kentucky (2)	Happy Chandler (D)	Resigned November 1, 1945, after becoming Commissioner of Major League Baseball. Successor was appointed to serve until a special election.	William A. Stanfill (R)	November 19, 1945

Idaho (2)	John W. Thomas (R)	Died November 10, 1945. Successor was appointed to serve until a special election, which he subsequently lost.	Charles C. Gossett (D)	November 17, 1945

Virginia (2)	Carter Glass (D)	Died May 28, 1946. Successor was appointed to serve until a special election.	Thomas G. Burch (D)	May 31, 1946

Alabama (2)	John H. Bankhead II (D)	Died June 12, 1946. Successor was appointed to serve until a special election.	George R. Swift (D)	June 15, 1946

Vermont (1)	Warren Austin (R)	Resigned August 2, 1946, after being appointed United States representative on the United Nations Security Council. Successor was appointed to serve until the next election.	Ralph Flanders (R)	November 1, 1946

Florida (1)	Charles O. Andrews (D)	Died September 18, 1946. Successor was elected to finish term.	Spessard Holland (D)	September 25, 1946

Alabama (2)	George R. Swift (D)	Resigned November 5, 1946. Successor was elected to finish term.	John Sparkman (D)	November 6, 1946

Connecticut (1)	Thomas C. Hart (R)	Resigned November 5, 1946. Successor was elected to finish term.	Raymond E. Baldwin (R)	December 27, 1946

Kentucky (2)	William A. Stanfill (R)	Resigned November 5, 1946. Successor was elected to finish term	John S. Cooper (R)	November 6, 1946

Ohio (1)	James W. Huffman (D)	Resigned November 5, 1946. Successor was elected to finish term.	Kingsley A. Taft (R)	November 6, 1946

Virginia (2)	Thomas G. Burch (D)	Resigned November 5, 1946. Successor was elected to finish term.	Absalom W. Robertson (D)	November 6, 1946

Idaho (2)	Charles C. Gossett (D)	Resigned November 6, 1946. Successor was elected to finish term.	Henry Dworshak (R)	November 6, 1946

North Carolina (2)	Josiah Bailey (D)	Died December 15, 1946. Successor was appointed to serve until a special election, which he subsequently lost.	William B. Umstead (D)	December 18, 1946

Washington (1)	Hugh Mitchell (D)	Resigned December 25, 1946. Successor was appointed to finish the term already having to be elected the next term.	Harry P. Cain (R)	December 26, 1946

This image shows a table consists of serveral rows and columns. Please return the contents in the following rows:
row 15
row 12
row 18
row 20
row 9

Requirements: Output the cell values in a row as JSON in the format {"row_id":"<row index>", "cell_list":"<a list of cells in this row>"}, e.g., {"row_id":"3", "cell_list": ["123.89", "News gathering", "selected tools"]}.

The cell values of target rows are as follows:
For row 15: {"row_id": "15", "cell_list": ['Alabama (2)', 'George R. Swift (D)', 'Resigned November 5, 1946. Successor was elected to finish term.', 'John Sparkman (D)', 'November 6, 1946']}
For row 12: {"row_id": "12", "cell_list": ['Alabama (2)', 'John H. Bankhead II (D)', 'Died June 12, 1946. Successor was appointed to serve until a special election.', 'George R. Swift (D)', 'June 15, 1946']}
For row 18: {"row_id": "18", "cell_list": ['Ohio (1)', 'James W. Huffman (D)', 'Resigned November 5, 1946. Successor was elected to finish term.', 'Kingsley A. Taft (R)', 'November 6, 1946']}
For row 20: {"row_id": "20", "cell_list": ['Idaho (2)', 'Charles C. Gossett (D)', 'Resigned November 6, 1946. Successor was elected to finish term.', 'Henry Dworshak (R)', 'November 6, 1946']}
For row 9: {"row_id": "9", "cell_list": ['Kentucky (2)', 'Happy Chandler (D)', 'Resigned November 1, 1945, after becoming Commissioner of Major League Baseball. Successor was appointed to serve until a special election.', 'William A. Stanfill (R)', 'November 19, 1945']}