user: Question: What percentage is Karen Handel at in the poll in which Eric Johnson is 13% and undecided is 22%?
Columns: ['Poll source', 'Dates administered', 'John Oxendine', 'Karen Handel', 'Nathan Deal', 'Eric Johnson', 'Ray McBerry', 'Undecided']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Magellan Strategies', 'July 18, 2010', '12%', '38%', '20%', '17%', '3%', '7%']
SQL:

assistant: SELECT "Karen Handel" FROM "Table" WHERE "Eric Johnson" = '13%' AND "Undecided" = '22%';