user: Question: Name the horizontal 0 for 通 TONG
Columns: ['Number', 'Name', 'Vertices', 'Hypotenuse 0 c', 'Vertical 0 b', 'Horizontal 0 a']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, '通 TONG', '天地乾 ΔTLQ', '通弦（TL天地）', '通股（TQ天乾）', '通勾（LQ地乾）']
SQL:

assistant: SELECT "Horizontal 0 a" FROM "Table" WHERE "Name" = '通 TONG';