user: Question: What City of license has a Frequency MHz smaller than 95.9 with W223AU as the call sign?
Columns: ['Call sign', 'Frequency MHz', 'City of license', 'ERP W', 'Class', 'FCC info']
Types: ['text', 'real', 'text', 'real', 'text', 'text']
Sample row: ['W221BY', 92.1, 'Elgin, Illinois', 38.0, 'D', 'FCC']
SQL:

assistant: SELECT "City of license" FROM "Table" WHERE "Frequency MHz" < 95.9 AND "Call sign" = 'W223AU';