user: Question: NAME THE Playoffs that HAVE a League of NPSL, and a Open Cup of Did not enter, and a Year of 2013?
Columns: ['Year', 'Division', 'League', 'Regular Season', 'Playoffs', 'Open Cup']
Types: ['text', 'real', 'text', 'text', 'text', 'text']
Sample row: ['2008', 4.0, 'NPSL', '2nd, Mid Atlantic', 'Did not qualify', 'Did not qualify']
SQL:

assistant: SELECT "Playoffs" FROM "Table" WHERE "League" = 'NPSL' AND "Open Cup" = 'Did not enter' AND "Year" = '2013';