po_1_li_1:
  id: 1
  purchase_order_id: 1
  part_number: 556324
  quantity: 1
  item_cost: 45.67

po_1_li_2:
  id: 2
  purchase_order_id: 1
  part_number: 79324231A
  quantity: 3
  item_cost: 19.99

li_3:
  id: 3
  part_number: 79324231A
  quantity: 67
  item_cost: 19.99

li_4:
  id: 4
  part_number: 5678
  quantity: 2
  item_cost: 199.99

li_5:
  id: 5
  part_number: 5WERT
  quantity: 1
  item_cost: 299.98