High:

1, Implement feature A, In Progress, John Doe
4, Refactor code, To Do, Jane Doe
7, Fix bug C, To Do, Alice Bar
9, Another feature, To Do, Jane Doe
11, Periodic maintenance, To Do, Jane Doe

Low:

2, Fix bug B, Done, Jane Doe
5, Deploy to production A and B, To Do, John Doe
8, Write tests for feature A, In Progress, John Doe
10, Another bug, To Do, John Doe

Medium:

3, Write tests for feature A, In Progress, John Doe
6, Write missing documentation for feature A, Done, Peter Foo