Default industry:
  Requires:
    Livestock
    Grain

Standard stock pile industry:
  Requires:
    Livestock: 10 items waiting
    Grain: 20 tons waiting

ECS:
  Requires:
    Livestock: 10 items waiting (300 max)
    Grain: 20 tons waiting (200 max)

FIRS:
  Requires:
    Livestock (missing)
    Grain (supplied)