need help with normalisation

[omyomyomy]

i have these three entites and i need to apply 1nf - 2nf - 3nf

here is the eneties and the atributes:

Supplier ( SupplierID, Name, County, Postcode)

Supplier_Product(Sup_Product, SupplierID, PartID, in_Stock, Safty_Stock)

Part (PartID, PartID, Level, Quantity, Place, Price)

the part table was a reflexive entity M:M i have chenged it to m:1.


can you show how i can implement 1nf 2nf and 3nf

thanks

[ashishm]

Create
Primary key SupplierID in Supplier
Primary key Sup_Product in Supplier_Product
Primary key PartID in Part
Foreign Key SupplierID in Supplier_Product
Foreign Key PartID in Supplier_Product