The relationship between charterparties and bill of lading can range from a simple one, where the bill of lading from a shipowner to a charterer/shipper has the status only of a receipt for cargo, to a complex one, where, for example, a charterer issues a bill of lading on his own form but includes a "demise clause" which states thet the person issuing the bull of lading is not the owner nor demise-charterer of vessel and the holder of the bull of lading is then ledt with the uncertainty of whom to sue for loss, damage or delay of the cargo carriage under the bill of lading.