| Value | Category |
|---|---|
| 1 | Tea/drink with sugar only |
| 2 | Milkk tea with sugar, etc |
| 3 | Tea/drink with solid food |
| 4 | Tea/drink without sugar with solid food |
| 5 | Porridge with solid food |
| 6 | Porridge with sugar only |
| 7 | Porridge with milk |
| 8 | Porridge without sugar only |
| 9 | Nothing |
| 10 | Others |
| Sysmiss |