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 2 | J. Will Taylor | Republican | 1918.0 | Re-elected | J. Will Taylor (R) 96.3% Mitchell Long (D) 3.7% |
| Tennessee 4 | Cordell Hull | Democratic | 1922.0 | Re-elected | Cordell Hull (D) Unopposed |
| Tennessee 5 | Ewin L. Davis | Democratic | 1918.0 | Re-elected | Ewin L. Davis (D) 81.7% Abe Davidson (R) 18.3% |
| Tennessee 6 | Joseph W. Byrns, Sr. | Democratic | 1908.0 | Re-elected | Joseph W. Byrns, Sr. (D) Unopposed |
| Tennessee 7 | William Charles Salmon | Democratic | 1922.0 | Retired Democratic hold | Edward Everett Eslick (D) Unopposed |
| Tennessee 8 | Gordon Browning | Democratic | 1922.0 | Re-elected | Gordon Browning (D) Unopposed |
Question:
Cordell Hull is the incumbent in how many districts?
Answer:
1.0