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:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Virginia 1 | Daniel Morgan | Federalist | 1797.0 | Retired Federalist hold | Robert Page (F) 54.3% John Smith (DR) 45.7% |
| Virginia 2 | David Holmes | Democratic-Republican | 1797.0 | Re-elected | David Holmes (DR) Robert Porterfield (F) |
| Virginia 3 | James Machir | Federalist | 1797.0 | Retired Democratic-Republican gain | George Jackson (DR) 53.9% John Haymond (F) 46.0% |
| Virginia 4 | Abram Trigg | Democratic-Republican | 1797.0 | Re-elected | Abram Trigg (DR) 88.5% William Preston (F) 11.5% |
| Virginia 5 | John J. Trigg | Democratic-Republican | 1797.0 | Re-elected | John J. Trigg (DR) George Hancock (F) |
| Virginia 6 | Matthew Clay | Democratic-Republican | 1797.0 | Re-elected | Matthew Clay (DR) Isaac Coles (DR) |
| Virginia 12 | Thomas Evans | Federalist | 1797.0 | Re-elected | Thomas Evans (F) 62.3% John Page (DR) 37.7% |
| Virginia 13 | John Clopton | Democratic-Republican | 1795.0 | Lost re-election Federalist gain | John Marshall (F) John Clopton (DR) |
| Virginia 15 | John Dawson | Democratic-Republican | 1797.0 | Re-elected | John Dawson (DR) |
| Virginia 16 | Anthony New | Democratic-Republican | 1793.0 | Re-elected | Anthony New (DR) Benjamin Temple (F) |
| Virginia 17 | Richard Brent | Democratic-Republican | 1795.0 | Retired Federalist gain | Leven Powell (F) 63.8% Roger West (DR) 36.4% |
| Virginia 18 | John Nicholas | Democratic-Republican | 1793.0 | Re-elected | John Nicholas (DR) John Blackwell (F) |
Question:
What is the district with the incumbent john nicholas?
Answer:
Virginia 18