iron_cycle.dot

digraph G {
  rankdir=BT;

  iron_ore[label="iron ore [0]"];
  iron_dust[label="iron dust [1]"];
  iron_ingot[label="iron ingot [1]"];
  iron_armor[label="iron armor [2]"];
  refined_iron[label="refined iron[2]"];
  steel[label="steel ingot [2]"];
  minecart[label="minecart [3]"];


  iron_dust -> iron_ore;
  iron_ingot -> iron_dust;
  iron_ingot -> iron_ore;
  iron_dust -> iron_ingot [style=dashed]; 
  iron_armor -> iron_ingot;
  refined_iron -> iron_ingot;

  minecart -> steel;
  steel -> iron_ingot;
  iron_ingot -> minecart [style=dashed];

  /* iron_dust_2 [style=dashed];
  iron_dust_2 -> iron_ingot;

  iron_ingot_2 [style=dashed];
  iron_ingot_2 -> minecart; */
  
}