Chinastark/bird_dataset huggingface dataset:
Column: BillOfMaterialsID
Name: bill of materials id
Data format: integer
Description: The unique number identifying bill of materials.
Value description: Primary key for BillOfMaterials records. Identity / Auto increment column.
Column: ProductAssemblyID
Name: product assembly id
Data format: integer
Description: Parent product identification number.
Column: ComponentID
Name: component ID
Data format: integer
Description: Component identification number.
Column: StartDate
Name: start date
Data format: datetime
Description: Date the component started being used in the assembly item.
Column: EndDate
Name: end date
Data format: datetime
Description: Date the component stopped being used in the assembly item.
Value description: commonsense evidence:
1. assembly item duration = (EndDate - StartDate) 
2. if EndDate is null, it means the assembly item doesn't finish (still going on).
Column: UnitMeasureCode
Name: unit measure code
Data format: text
Description: Standard code identifying the unit of measure for the quantity.
Column: BOMLevel
Name: bill of materials level
Data format: integer
Description: Indicates the depth the component is from its parent (column2)(AssemblyID).
Column: PerAssemblyQty
Name: per assembly quantity
Data format: real
Description: Quantity of the component needed to create the assembly.