one:
  sample: sample1
  my_module: sample_prep
  assigned_by: steve
  assigned_on: 2015-09-10 10:11:57

two:
  sample: sample2
  my_module: sample_prep
  assigned_by: jlaw
  assigned_on: 2015-09-11 12:43:22

three:
  sample: sample3
  my_module: sample_prep
  assigned_by: nora
  assigned_on: 2015-09-15 16:23:35