Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Years | Gender | Area | Authority | Decile | Roll |
| --- | --- | --- | --- | --- | --- | --- |
| Carterton School | 1–8 | Coed | Carterton | State | 4.0 | 356.0 |
| Dalefield School | 1–8 | Coed | Dalefield | State | 5.0 | 52.0 |
| Gladstone School | 1–8 | Coed | Gladstone | State | 7.0 | 110.0 |
| Ponatahi Christian School | 1–13 | Coed | Carterton | Integrated | 7.0 | 81.0 |
| South End School | 1–8 | Coed | Carterton | State | 5.0 | 126.0 |
| St Mary's School | 1–8 | Coed | Carterton | Integrated | 6.0 | 78.0 |
Question:
What school in Dalefield has a roll less than 81?
Answer:
Dalefield School