original_column_name,column_name,column_description,data_format,value_description
quantity_id,quantity id,the unique identifier for the quantity,integer,
recipe_id,recipe id,the id of the recipe,integer,
ingredient_id,ingredient id,the id of the ingredient,integer,
max_qty,maximum quantity,the max quantity of the ingredient,real,
min_qty,minimum quantity,the min quantity of the ingredient,real,"commonsense evidence: If max_qty equals to min_qty, it means that the ingredient must be rationed. "
unit,,the unit of the ingredient,text,
preparation,,,text,commonsense evidence: 'No data' means the ingredient doesn't need preprocessing. 
optional,,whether the ingredient is optional ,text,