user: Question: What was the earliest year that yvette alexander took office and was up for reelection after 2016?
Columns: ['Name', 'Position', 'Party', 'Took office', 'Up for reelection']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Phil Mendelson', 'Chairman', 'Democratic', 2012.0, 2014.0]
SQL:

assistant: SELECT MIN("Took office") FROM "Table" WHERE "Name" = 'yvette alexander' AND "Up for reelection" > 2016.0;