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 |
| --- | --- | --- | --- | --- | --- |
| Tennessee 4 | Joe L. Evins | Democratic | 1946.0 | Re-elected | Joe L. Evins (D) Unopposed |
| Tennessee 5 | Percy Priest | Democratic | 1940.0 | Re-elected | Percy Priest (D) 90.8% Robert M. Donihi (R) 9.2% |
| Tennessee 6 | James Patrick Sutton | Democratic | 1948.0 | Retired to run for U. S. Senate Democratic hold | Ross Bass (D) 99.4% Lon Brewer (R) 0.6% |
| Tennessee 7 | Tom J. Murray | Democratic | 1942.0 | Re-elected | Tom J. Murray (D) Unopposed |
| Tennessee 8 | Jere Cooper | Democratic | 1928.0 | Re-elected | Jere Cooper (D) Unopposed |
Question:
What district is tom j. murray from?
Answer:
Tennessee 7