user: Question: Which Hanya has an area of 19.3888?
Columns: ['Hanyu', 'Tongyong', 'Pe̍h-ōe-jī', 'Chinese', 'Area (km²)', 'No. of villages', 'Population (2010)']
Types: ['text', 'text', 'text', 'text', 'real', 'real', 'real']
Sample row: ['Yancheng', 'Yancheng', 'Iâm-tiâⁿ', '鹽埕區', 1.4161, 21.0, 27651.0]
SQL:

assistant: SELECT "Hanyu" FROM "Table" WHERE "Area (km²)" = 19.3888;